Finding the Fourth Proportional to 2,921.52, 4,380.23 and 1,166.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,921.52 : 4,380.23 = 1,166.91 : x
2. Step 2: Convert to fraction form
   2,921.52/4,380.23 = 1,166.91/x
3. Step 3: Cross multiply
   2,921.52x = 4,380.23 × 1,166.91
4. Step 4: Simplify right side
   2,921.52x = 5,111,314.12
5. Step 5: Solve for x
   x = 5,111,314.12/2,921.52
6. Step 6: Final answer
   x = 1,749.54