Finding the Fourth Proportional to 1,062.72, 1,468.16 and 906.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,062.72 : 1,468.16 = 906.96 : x
2. Step 2: Convert to fraction form
   1,062.72/1,468.16 = 906.96/x
3. Step 3: Cross multiply
   1,062.72x = 1,468.16 × 906.96
4. Step 4: Simplify right side
   1,062.72x = 1,331,566.77
5. Step 5: Solve for x
   x = 1,331,566.77/1,062.72
6. Step 6: Final answer
   x = 1,252.98