Finding the Fourth Proportional to 2,499.02, 3,747.84 and 938.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.02 : 3,747.84 = 938.90 : x
2. Step 2: Convert to fraction form
   2,499.02/3,747.84 = 938.90/x
3. Step 3: Cross multiply
   2,499.02x = 3,747.84 × 938.90
4. Step 4: Simplify right side
   2,499.02x = 3,518,846.98
5. Step 5: Solve for x
   x = 3,518,846.98/2,499.02
6. Step 6: Final answer
   x = 1,408.09