Finding the Fourth Proportional to 2,613.22, 3,606.17 and 1,590.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.22 : 3,606.17 = 1,590.79 : x
2. Step 2: Convert to fraction form
   2,613.22/3,606.17 = 1,590.79/x
3. Step 3: Cross multiply
   2,613.22x = 3,606.17 × 1,590.79
4. Step 4: Simplify right side
   2,613.22x = 5,736,659.17
5. Step 5: Solve for x
   x = 5,736,659.17/2,613.22
6. Step 6: Final answer
   x = 2,195.25