Finding the Fourth Proportional to 748,422.79, 1,032,823.86 and 404,258.72

Step by Step Solution

1. Step 1: Write the proportion equation
   748,422.79 : 1,032,823.86 = 404,258.72 : x
2. Step 2: Convert to fraction form
   748,422.79/1,032,823.86 = 404,258.72/x
3. Step 3: Cross multiply
   748,422.79x = 1,032,823.86 × 404,258.72
4. Step 4: Simplify right side
   748,422.79x = 417,528,048,949.18
5. Step 5: Solve for x
   x = 417,528,048,949.18/748,422.79
6. Step 6: Final answer
   x = 557,877.25