Finding the Fourth Proportional to 627,430, 865,970.04 and 359,158

Step by Step Solution

1. Step 1: Write the proportion equation
   627,430 : 865,970.04 = 359,158 : x
2. Step 2: Convert to fraction form
   627,430/865,970.04 = 359,158/x
3. Step 3: Cross multiply
   627,430x = 865,970.04 × 359,158
4. Step 4: Simplify right side
   627,430x = 311,020,067,626.32
5. Step 5: Solve for x
   x = 311,020,067,626.32/627,430
6. Step 6: Final answer
   x = 495,704.81