Finding the Fourth Proportional to 1,200.45, 1,656.16 and 702.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.45 : 1,656.16 = 702.93 : x
2. Step 2: Convert to fraction form
   1,200.45/1,656.16 = 702.93/x
3. Step 3: Cross multiply
   1,200.45x = 1,656.16 × 702.93
4. Step 4: Simplify right side
   1,200.45x = 1,164,164.55
5. Step 5: Solve for x
   x = 1,164,164.55/1,200.45
6. Step 6: Final answer
   x = 969.77