Finding the Fourth Proportional to 1,156.69, 1,597.17 and 714.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156.69 : 1,597.17 = 714.88 : x
2. Step 2: Convert to fraction form
   1,156.69/1,597.17 = 714.88/x
3. Step 3: Cross multiply
   1,156.69x = 1,597.17 × 714.88
4. Step 4: Simplify right side
   1,156.69x = 1,141,784.89
5. Step 5: Solve for x
   x = 1,141,784.89/1,156.69
6. Step 6: Final answer
   x = 987.11