Finding the Fourth Proportional to 1,061.08, 1,592.16 and 774.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.08 : 1,592.16 = 774.88 : x
2. Step 2: Convert to fraction form
   1,061.08/1,592.16 = 774.88/x
3. Step 3: Cross multiply
   1,061.08x = 1,592.16 × 774.88
4. Step 4: Simplify right side
   1,061.08x = 1,233,732.94
5. Step 5: Solve for x
   x = 1,233,732.94/1,061.08
6. Step 6: Final answer
   x = 1,162.71