Finding the Fourth Proportional to 1,046.40, 1,566.72 and 634.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.40 : 1,566.72 = 634.92 : x
2. Step 2: Convert to fraction form
   1,046.40/1,566.72 = 634.92/x
3. Step 3: Cross multiply
   1,046.40x = 1,566.72 × 634.92
4. Step 4: Simplify right side
   1,046.40x = 994,741.86
5. Step 5: Solve for x
   x = 994,741.86/1,046.40
6. Step 6: Final answer
   x = 950.63