Finding the Fourth Proportional to 2,150.55, 2,966.90 and 1,559.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.55 : 2,966.90 = 1,559.79 : x
2. Step 2: Convert to fraction form
   2,150.55/2,966.90 = 1,559.79/x
3. Step 3: Cross multiply
   2,150.55x = 2,966.90 × 1,559.79
4. Step 4: Simplify right side
   2,150.55x = 4,627,733.15
5. Step 5: Solve for x
   x = 4,627,733.15/2,150.55
6. Step 6: Final answer
   x = 2,151.88