Finding the Fourth Proportional to 1,870,868.72, 2,581,798.18 and 1,011,428.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870,868.72 : 2,581,798.18 = 1,011,428.75 : x
2. Step 2: Convert to fraction form
   1,870,868.72/2,581,798.18 = 1,011,428.75/x
3. Step 3: Cross multiply
   1,870,868.72x = 2,581,798.18 × 1,011,428.75
4. Step 4: Simplify right side
   1,870,868.72x = 2,611,304,905,949.68
5. Step 5: Solve for x
   x = 2,611,304,905,949.68/1,870,868.72
6. Step 6: Final answer
   x = 1,395,771.32