Finding the Fourth Proportional to 2,500.98, 3,451.42 and 1,438.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.98 : 3,451.42 = 1,438.94 : x
2. Step 2: Convert to fraction form
   2,500.98/3,451.42 = 1,438.94/x
3. Step 3: Cross multiply
   2,500.98x = 3,451.42 × 1,438.94
4. Step 4: Simplify right side
   2,500.98x = 4,966,386.29
5. Step 5: Solve for x
   x = 4,966,386.29/2,500.98
6. Step 6: Final answer
   x = 1,985.78