Finding the Fourth Proportional to 1,566.33, 2,156.61 and 1,329.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,566.33 : 2,156.61 = 1,329.78 : x
2. Step 2: Convert to fraction form
   1,566.33/2,156.61 = 1,329.78/x
3. Step 3: Cross multiply
   1,566.33x = 2,156.61 × 1,329.78
4. Step 4: Simplify right side
   1,566.33x = 2,867,810.20
5. Step 5: Solve for x
   x = 2,867,810.20/1,566.33
6. Step 6: Final answer
   x = 1,830.92