Finding the Fourth Proportional to 2,501.48, 3,750.17 and 1,390.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,501.48 : 3,750.17 = 1,390.91 : x
2. Step 2: Convert to fraction form
   2,501.48/3,750.17 = 1,390.91/x
3. Step 3: Cross multiply
   2,501.48x = 3,750.17 × 1,390.91
4. Step 4: Simplify right side
   2,501.48x = 5,216,123.25
5. Step 5: Solve for x
   x = 5,216,123.25/2,501.48
6. Step 6: Final answer
   x = 2,085.21