Finding the Fourth Proportional to 2,602.63, 3,902.82 and 753.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602.63 : 3,902.82 = 753.31 : x
2. Step 2: Convert to fraction form
   2,602.63/3,902.82 = 753.31/x
3. Step 3: Cross multiply
   2,602.63x = 3,902.82 × 753.31
4. Step 4: Simplify right side
   2,602.63x = 2,940,033.33
5. Step 5: Solve for x
   x = 2,940,033.33/2,602.63
6. Step 6: Final answer
   x = 1,129.64