Finding the Fourth Proportional to 742,100.54, 1,024,100.73 and 402,568.79

Step by Step Solution

1. Step 1: Write the proportion equation
   742,100.54 : 1,024,100.73 = 402,568.79 : x
2. Step 2: Convert to fraction form
   742,100.54/1,024,100.73 = 402,568.79/x
3. Step 3: Cross multiply
   742,100.54x = 1,024,100.73 × 402,568.79
4. Step 4: Simplify right side
   742,100.54x = 412,270,986,593.71
5. Step 5: Solve for x
   x = 412,270,986,593.71/742,100.54
6. Step 6: Final answer
   x = 555,546.00