Finding the Fourth Proportional to 2,490.95, 3,437.82 and 1,442.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,490.95 : 3,437.82 = 1,442.81 : x
2. Step 2: Convert to fraction form
   2,490.95/3,437.82 = 1,442.81/x
3. Step 3: Cross multiply
   2,490.95x = 3,437.82 × 1,442.81
4. Step 4: Simplify right side
   2,490.95x = 4,960,103.89
5. Step 5: Solve for x
   x = 4,960,103.89/2,490.95
6. Step 6: Final answer
   x = 1,991.25