Finding the Fourth Proportional to 1,143.17, 1,577.61 and 700.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,143.17 : 1,577.61 = 700.98 : x
2. Step 2: Convert to fraction form
   1,143.17/1,577.61 = 700.98/x
3. Step 3: Cross multiply
   1,143.17x = 1,577.61 × 700.98
4. Step 4: Simplify right side
   1,143.17x = 1,105,869.55
5. Step 5: Solve for x
   x = 1,105,869.55/1,143.17
6. Step 6: Final answer
   x = 967.38