Finding the Fourth Proportional to 2,612.87, 3,606.27 and 1,551.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.87 : 3,606.27 = 1,551.21 : x
2. Step 2: Convert to fraction form
   2,612.87/3,606.27 = 1,551.21/x
3. Step 3: Cross multiply
   2,612.87x = 3,606.27 × 1,551.21
4. Step 4: Simplify right side
   2,612.87x = 5,594,082.09
5. Step 5: Solve for x
   x = 5,594,082.09/2,612.87
6. Step 6: Final answer
   x = 2,140.98