Finding the Fourth Proportional to 1,800,870,106.28, 2,485,278,417.60 and 997,097,596.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,800,870,106.28 : 2,485,278,417.60 = 997,097,596.88 : x
2. Step 2: Convert to fraction form
   1,800,870,106.28/2,485,278,417.60 = 997,097,596.88/x
3. Step 3: Cross multiply
   1,800,870,106.28x = 2,485,278,417.60 × 997,097,596.88
4. Step 4: Simplify right side
   1,800,870,106.28x = 2,478,065,137,754,262,528
5. Step 5: Solve for x
   x = 2,478,065,137,754,262,528/1,800,870,106.28
6. Step 6: Final answer
   x = 1,376,037,688.18