Finding the Fourth Proportional to 2,538.91, 3,503.96 and 1,491.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,538.91 : 3,503.96 = 1,491.31 : x
2. Step 2: Convert to fraction form
   2,538.91/3,503.96 = 1,491.31/x
3. Step 3: Cross multiply
   2,538.91x = 3,503.96 × 1,491.31
4. Step 4: Simplify right side
   2,538.91x = 5,225,490.59
5. Step 5: Solve for x
   x = 5,225,490.59/2,538.91
6. Step 6: Final answer
   x = 2,058.16