Finding the Fourth Proportional to 2,580.42, 3,874.17 and 1,332.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580.42 : 3,874.17 = 1,332.06 : x
2. Step 2: Convert to fraction form
   2,580.42/3,874.17 = 1,332.06/x
3. Step 3: Cross multiply
   2,580.42x = 3,874.17 × 1,332.06
4. Step 4: Simplify right side
   2,580.42x = 5,160,607.52
5. Step 5: Solve for x
   x = 5,160,607.52/2,580.42
6. Step 6: Final answer
   x = 1,999.91