Finding the Fourth Proportional to 2,156.57, 2,975.55 and 1,566.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156.57 : 2,975.55 = 1,566.08 : x
2. Step 2: Convert to fraction form
   2,156.57/2,975.55 = 1,566.08/x
3. Step 3: Cross multiply
   2,156.57x = 2,975.55 × 1,566.08
4. Step 4: Simplify right side
   2,156.57x = 4,659,934.47
5. Step 5: Solve for x
   x = 4,659,934.47/2,156.57
6. Step 6: Final answer
   x = 2,160.81