Finding the Fourth Proportional to 2,498.43, 3,447.78 and 1,379.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,498.43 : 3,447.78 = 1,379.35 : x
2. Step 2: Convert to fraction form
   2,498.43/3,447.78 = 1,379.35/x
3. Step 3: Cross multiply
   2,498.43x = 3,447.78 × 1,379.35
4. Step 4: Simplify right side
   2,498.43x = 4,755,695.34
5. Step 5: Solve for x
   x = 4,755,695.34/2,498.43
6. Step 6: Final answer
   x = 1,903.47