Finding the Fourth Proportional to 2,053.32, 3,081.24 and 1,231.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,053.32 : 3,081.24 = 1,231.80 : x
2. Step 2: Convert to fraction form
   2,053.32/3,081.24 = 1,231.80/x
3. Step 3: Cross multiply
   2,053.32x = 3,081.24 × 1,231.80
4. Step 4: Simplify right side
   2,053.32x = 3,795,471.43
5. Step 5: Solve for x
   x = 3,795,471.43/2,053.32
6. Step 6: Final answer
   x = 1,848.46