Finding the Fourth Proportional to 2,081.86, 3,124.71 and 1,457.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.86 : 3,124.71 = 1,457.38 : x
2. Step 2: Convert to fraction form
   2,081.86/3,124.71 = 1,457.38/x
3. Step 3: Cross multiply
   2,081.86x = 3,124.71 × 1,457.38
4. Step 4: Simplify right side
   2,081.86x = 4,553,889.86
5. Step 5: Solve for x
   x = 4,553,889.86/2,081.86
6. Step 6: Final answer
   x = 2,187.41