Finding the Fourth Proportional to 2,294.59, 3,164.79 and 1,587.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,294.59 : 3,164.79 = 1,587.61 : x
2. Step 2: Convert to fraction form
   2,294.59/3,164.79 = 1,587.61/x
3. Step 3: Cross multiply
   2,294.59x = 3,164.79 × 1,587.61
4. Step 4: Simplify right side
   2,294.59x = 5,024,452.25
5. Step 5: Solve for x
   x = 5,024,452.25/2,294.59
6. Step 6: Final answer
   x = 2,189.70