Finding the Fourth Proportional to 1,060.52, 1,462.60 and 687.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,060.52 : 1,462.60 = 687.15 : x
2. Step 2: Convert to fraction form
   1,060.52/1,462.60 = 687.15/x
3. Step 3: Cross multiply
   1,060.52x = 1,462.60 × 687.15
4. Step 4: Simplify right side
   1,060.52x = 1,005,014.84
5. Step 5: Solve for x
   x = 1,005,014.84/1,060.52
6. Step 6: Final answer
   x = 947.66