Finding the Fourth Proportional to 2,618.52, 3,613.98 and 1,570.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618.52 : 3,613.98 = 1,570.80 : x
2. Step 2: Convert to fraction form
   2,618.52/3,613.98 = 1,570.80/x
3. Step 3: Cross multiply
   2,618.52x = 3,613.98 × 1,570.80
4. Step 4: Simplify right side
   2,618.52x = 5,676,839.78
5. Step 5: Solve for x
   x = 5,676,839.78/2,618.52
6. Step 6: Final answer
   x = 2,167.96