Finding the Fourth Proportional to 3,221.10, 4,831.25 and 1,030.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,221.10 : 4,831.25 = 1,030.05 : x
2. Step 2: Convert to fraction form
   3,221.10/4,831.25 = 1,030.05/x
3. Step 3: Cross multiply
   3,221.10x = 4,831.25 × 1,030.05
4. Step 4: Simplify right side
   3,221.10x = 4,976,423.91
5. Step 5: Solve for x
   x = 4,976,423.91/3,221.10
6. Step 6: Final answer
   x = 1,544.95