Finding the Fourth Proportional to 1,051.31, 1,451.27 and 658.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.31 : 1,451.27 = 658.56 : x
2. Step 2: Convert to fraction form
   1,051.31/1,451.27 = 658.56/x
3. Step 3: Cross multiply
   1,051.31x = 1,451.27 × 658.56
4. Step 4: Simplify right side
   1,051.31x = 955,751.76
5. Step 5: Solve for x
   x = 955,751.76/1,051.31
6. Step 6: Final answer
   x = 909.10