Finding the Fourth Proportional to 1,013,422.68, 1,398,501.72 and 554,535.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,013,422.68 : 1,398,501.72 = 554,535.36 : x
2. Step 2: Convert to fraction form
   1,013,422.68/1,398,501.72 = 554,535.36/x
3. Step 3: Cross multiply
   1,013,422.68x = 1,398,501.72 × 554,535.36
4. Step 4: Simplify right side
   1,013,422.68x = 775,518,654,760.82
5. Step 5: Solve for x
   x = 775,518,654,760.82/1,013,422.68
6. Step 6: Final answer
   x = 765,246.99