Finding the Fourth Proportional to 1,200.18, 1,656.28 and 702.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.18 : 1,656.28 = 702.98 : x
2. Step 2: Convert to fraction form
   1,200.18/1,656.28 = 702.98/x
3. Step 3: Cross multiply
   1,200.18x = 1,656.28 × 702.98
4. Step 4: Simplify right side
   1,200.18x = 1,164,331.71
5. Step 5: Solve for x
   x = 1,164,331.71/1,200.18
6. Step 6: Final answer
   x = 970.13