Finding the Fourth Proportional to 488,506.88, 732,774.69 and 416,978.51

Step by Step Solution

1. Step 1: Write the proportion equation
   488,506.88 : 732,774.69 = 416,978.51 : x
2. Step 2: Convert to fraction form
   488,506.88/732,774.69 = 416,978.51/x
3. Step 3: Cross multiply
   488,506.88x = 732,774.69 × 416,978.51
4. Step 4: Simplify right side
   488,506.88x = 305,551,298,401.91
5. Step 5: Solve for x
   x = 305,551,298,401.91/488,506.88
6. Step 6: Final answer
   x = 625,480.03