Finding the Fourth Proportional to 1,224.52, 1,689.88 and 700.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,224.52 : 1,689.88 = 700.72 : x
2. Step 2: Convert to fraction form
   1,224.52/1,689.88 = 700.72/x
3. Step 3: Cross multiply
   1,224.52x = 1,689.88 × 700.72
4. Step 4: Simplify right side
   1,224.52x = 1,184,132.71
5. Step 5: Solve for x
   x = 1,184,132.71/1,224.52
6. Step 6: Final answer
   x = 967.02