Finding the Fourth Proportional to 2,581.34, 3,562.22 and 1,402.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581.34 : 3,562.22 = 1,402.40 : x
2. Step 2: Convert to fraction form
   2,581.34/3,562.22 = 1,402.40/x
3. Step 3: Cross multiply
   2,581.34x = 3,562.22 × 1,402.40
4. Step 4: Simplify right side
   2,581.34x = 4,995,669.74
5. Step 5: Solve for x
   x = 4,995,669.74/2,581.34
6. Step 6: Final answer
   x = 1,935.30