Finding the Fourth Proportional to 970,123.68, 1,338,812.10 and 540,404.10

Step by Step Solution

1. Step 1: Write the proportion equation
   970,123.68 : 1,338,812.10 = 540,404.10 : x
2. Step 2: Convert to fraction form
   970,123.68/1,338,812.10 = 540,404.10/x
3. Step 3: Cross multiply
   970,123.68x = 1,338,812.10 × 540,404.10
4. Step 4: Simplify right side
   970,123.68x = 723,499,547,969.61
5. Step 5: Solve for x
   x = 723,499,547,969.61/970,123.68
6. Step 6: Final answer
   x = 745,780.73