Finding the Fourth Proportional to 2,498.96, 3,748.54 and 938.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,498.96 : 3,748.54 = 938.80 : x
2. Step 2: Convert to fraction form
   2,498.96/3,748.54 = 938.80/x
3. Step 3: Cross multiply
   2,498.96x = 3,748.54 × 938.80
4. Step 4: Simplify right side
   2,498.96x = 3,519,129.35
5. Step 5: Solve for x
   x = 3,519,129.35/2,498.96
6. Step 6: Final answer
   x = 1,408.24