Finding the Fourth Proportional to 2,490.84, 3,438.54 and 1,442.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,490.84 : 3,438.54 = 1,442.52 : x
2. Step 2: Convert to fraction form
   2,490.84/3,438.54 = 1,442.52/x
3. Step 3: Cross multiply
   2,490.84x = 3,438.54 × 1,442.52
4. Step 4: Simplify right side
   2,490.84x = 4,960,162.72
5. Step 5: Solve for x
   x = 4,960,162.72/2,490.84
6. Step 6: Final answer
   x = 1,991.36