Finding the Fourth Proportional to 2,580.57, 3,872.90 and 937.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580.57 : 3,872.90 = 937.59 : x
2. Step 2: Convert to fraction form
   2,580.57/3,872.90 = 937.59/x
3. Step 3: Cross multiply
   2,580.57x = 3,872.90 × 937.59
4. Step 4: Simplify right side
   2,580.57x = 3,631,192.31
5. Step 5: Solve for x
   x = 3,631,192.31/2,580.57
6. Step 6: Final answer
   x = 1,407.13