Finding the Fourth Proportional to 1,060.96, 1,463.72 and 781.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,060.96 : 1,463.72 = 781.86 : x
2. Step 2: Convert to fraction form
   1,060.96/1,463.72 = 781.86/x
3. Step 3: Cross multiply
   1,060.96x = 1,463.72 × 781.86
4. Step 4: Simplify right side
   1,060.96x = 1,144,424.12
5. Step 5: Solve for x
   x = 1,144,424.12/1,060.96
6. Step 6: Final answer
   x = 1,078.67