Finding the Fourth Proportional to 2,491.86, 3,738.18 and 1,030.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,491.86 : 3,738.18 = 1,030.20 : x
2. Step 2: Convert to fraction form
   2,491.86/3,738.18 = 1,030.20/x
3. Step 3: Cross multiply
   2,491.86x = 3,738.18 × 1,030.20
4. Step 4: Simplify right side
   2,491.86x = 3,851,073.04
5. Step 5: Solve for x
   x = 3,851,073.04/2,491.86
6. Step 6: Final answer
   x = 1,545.46