Finding the Fourth Proportional to 2,488.02, 3,728.50 and 1,937.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.02 : 3,728.50 = 1,937.78 : x
2. Step 2: Convert to fraction form
   2,488.02/3,728.50 = 1,937.78/x
3. Step 3: Cross multiply
   2,488.02x = 3,728.50 × 1,937.78
4. Step 4: Simplify right side
   2,488.02x = 7,225,012.73
5. Step 5: Solve for x
   x = 7,225,012.73/2,488.02
6. Step 6: Final answer
   x = 2,903.92