Finding the Fourth Proportional to 1,114.89, 1,539.30 and 695.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114.89 : 1,539.30 = 695.88 : x
2. Step 2: Convert to fraction form
   1,114.89/1,539.30 = 695.88/x
3. Step 3: Cross multiply
   1,114.89x = 1,539.30 × 695.88
4. Step 4: Simplify right side
   1,114.89x = 1,071,168.08
5. Step 5: Solve for x
   x = 1,071,168.08/1,114.89
6. Step 6: Final answer
   x = 960.78