Finding the Fourth Proportional to 1,912,890.72, 2,639,688.12 and 1,097,052.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,912,890.72 : 2,639,688.12 = 1,097,052.24 : x
2. Step 2: Convert to fraction form
   1,912,890.72/2,639,688.12 = 1,097,052.24/x
3. Step 3: Cross multiply
   1,912,890.72x = 2,639,688.12 × 1,097,052.24
4. Step 4: Simplify right side
   1,912,890.72x = 2,895,875,764,947.39
5. Step 5: Solve for x
   x = 2,895,875,764,947.39/1,912,890.72
6. Step 6: Final answer
   x = 1,513,874.12