Finding the Fourth Proportional to 2,391.10, 3,291.52 and 2,074.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391.10 : 3,291.52 = 2,074.50 : x
2. Step 2: Convert to fraction form
   2,391.10/3,291.52 = 2,074.50/x
3. Step 3: Cross multiply
   2,391.10x = 3,291.52 × 2,074.50
4. Step 4: Simplify right side
   2,391.10x = 6,828,250.01
5. Step 5: Solve for x
   x = 6,828,250.01/2,391.10
6. Step 6: Final answer
   x = 2,855.70