Finding the Fourth Proportional to 4,002.99, 6,003.78 and 1,811.20

Step by Step Solution

1. Step 1: Write the proportion equation
   4,002.99 : 6,003.78 = 1,811.20 : x
2. Step 2: Convert to fraction form
   4,002.99/6,003.78 = 1,811.20/x
3. Step 3: Cross multiply
   4,002.99x = 6,003.78 × 1,811.20
4. Step 4: Simplify right side
   4,002.99x = 10,874,046.34
5. Step 5: Solve for x
   x = 10,874,046.34/4,002.99
6. Step 6: Final answer
   x = 2,716.48