Finding the Fourth Proportional to 2,508.48, 3,763.62 and 1,047.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,508.48 : 3,763.62 = 1,047.78 : x
2. Step 2: Convert to fraction form
   2,508.48/3,763.62 = 1,047.78/x
3. Step 3: Cross multiply
   2,508.48x = 3,763.62 × 1,047.78
4. Step 4: Simplify right side
   2,508.48x = 3,943,445.76
5. Step 5: Solve for x
   x = 3,943,445.76/2,508.48
6. Step 6: Final answer
   x = 1,572.05