Finding the Fourth Proportional to 2,498.57, 3,448.18 and 1,379.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,498.57 : 3,448.18 = 1,379.50 : x
2. Step 2: Convert to fraction form
   2,498.57/3,448.18 = 1,379.50/x
3. Step 3: Cross multiply
   2,498.57x = 3,448.18 × 1,379.50
4. Step 4: Simplify right side
   2,498.57x = 4,756,770.34
5. Step 5: Solve for x
   x = 4,756,770.34/2,498.57
6. Step 6: Final answer
   x = 1,903.80