Finding the Fourth Proportional to 2,591.16, 3,574.98 and 1,646.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.16 : 3,574.98 = 1,646.70 : x
2. Step 2: Convert to fraction form
   2,591.16/3,574.98 = 1,646.70/x
3. Step 3: Cross multiply
   2,591.16x = 3,574.98 × 1,646.70
4. Step 4: Simplify right side
   2,591.16x = 5,886,919.57
5. Step 5: Solve for x
   x = 5,886,919.57/2,591.16
6. Step 6: Final answer
   x = 2,271.92