Finding the Fourth Proportional to 2,921.55, 4,379.49 and 1,166.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,921.55 : 4,379.49 = 1,166.05 : x
2. Step 2: Convert to fraction form
   2,921.55/4,379.49 = 1,166.05/x
3. Step 3: Cross multiply
   2,921.55x = 4,379.49 × 1,166.05
4. Step 4: Simplify right side
   2,921.55x = 5,106,682.42
5. Step 5: Solve for x
   x = 5,106,682.42/2,921.55
6. Step 6: Final answer
   x = 1,747.94