Finding the Fourth Proportional to 1,872.56, 2,808.42 and 702.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,872.56 : 2,808.42 = 702.52 : x
2. Step 2: Convert to fraction form
   1,872.56/2,808.42 = 702.52/x
3. Step 3: Cross multiply
   1,872.56x = 2,808.42 × 702.52
4. Step 4: Simplify right side
   1,872.56x = 1,972,971.22
5. Step 5: Solve for x
   x = 1,972,971.22/1,872.56
6. Step 6: Final answer
   x = 1,053.62