Finding the Fourth Proportional to 1,116.72, 1,541.28 and 697.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116.72 : 1,541.28 = 697.26 : x
2. Step 2: Convert to fraction form
   1,116.72/1,541.28 = 697.26/x
3. Step 3: Cross multiply
   1,116.72x = 1,541.28 × 697.26
4. Step 4: Simplify right side
   1,116.72x = 1,074,672.89
5. Step 5: Solve for x
   x = 1,074,672.89/1,116.72
6. Step 6: Final answer
   x = 962.35