Finding the Fourth Proportional to 2,389.10, 3,299.13 and 1,798.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.10 : 3,299.13 = 1,798.61 : x
2. Step 2: Convert to fraction form
   2,389.10/3,299.13 = 1,798.61/x
3. Step 3: Cross multiply
   2,389.10x = 3,299.13 × 1,798.61
4. Step 4: Simplify right side
   2,389.10x = 5,933,831.71
5. Step 5: Solve for x
   x = 5,933,831.71/2,389.10
6. Step 6: Final answer
   x = 2,483.72