Finding the Fourth Proportional to 748,866.10, 1,123,299.15 and 748,866.10

Step by Step Solution

1. Step 1: Write the proportion equation
   748,866.10 : 1,123,299.15 = 748,866.10 : x
2. Step 2: Convert to fraction form
   748,866.10/1,123,299.15 = 748,866.10/x
3. Step 3: Cross multiply
   748,866.10x = 1,123,299.15 × 748,866.10
4. Step 4: Simplify right side
   748,866.10x = 841,200,653,593.82
5. Step 5: Solve for x
   x = 841,200,653,593.82/748,866.10
6. Step 6: Final answer
   x = 1,123,299.15