Finding the Fourth Proportional to 1,174.30, 1,620.42 and 702.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,174.30 : 1,620.42 = 702.10 : x
2. Step 2: Convert to fraction form
   1,174.30/1,620.42 = 702.10/x
3. Step 3: Cross multiply
   1,174.30x = 1,620.42 × 702.10
4. Step 4: Simplify right side
   1,174.30x = 1,137,689.32
5. Step 5: Solve for x
   x = 1,137,689.32/1,174.30
6. Step 6: Final answer
   x = 968.83