Finding the Fourth Proportional to 2,581.73, 3,562.80 and 1,402.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581.73 : 3,562.80 = 1,402.80 : x
2. Step 2: Convert to fraction form
   2,581.73/3,562.80 = 1,402.80/x
3. Step 3: Cross multiply
   2,581.73x = 3,562.80 × 1,402.80
4. Step 4: Simplify right side
   2,581.73x = 4,997,877.22
5. Step 5: Solve for x
   x = 4,997,877.22/2,581.73
6. Step 6: Final answer
   x = 1,935.86