Finding the Fourth Proportional to 858,702.96, 1,185,012.72 and 476,730.72

Step by Step Solution

1. Step 1: Write the proportion equation
   858,702.96 : 1,185,012.72 = 476,730.72 : x
2. Step 2: Convert to fraction form
   858,702.96/1,185,012.72 = 476,730.72/x
3. Step 3: Cross multiply
   858,702.96x = 1,185,012.72 × 476,730.72
4. Step 4: Simplify right side
   858,702.96x = 564,931,967,214.76
5. Step 5: Solve for x
   x = 564,931,967,214.76/858,702.96
6. Step 6: Final answer
   x = 657,889.86