Finding the Fourth Proportional to 2,921.01, 4,381.34 and 1,189.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,921.01 : 4,381.34 = 1,189.59 : x
2. Step 2: Convert to fraction form
   2,921.01/4,381.34 = 1,189.59/x
3. Step 3: Cross multiply
   2,921.01x = 4,381.34 × 1,189.59
4. Step 4: Simplify right side
   2,921.01x = 5,211,992.30
5. Step 5: Solve for x
   x = 5,211,992.30/2,921.01
6. Step 6: Final answer
   x = 1,784.31