Finding the Fourth Proportional to 2,820.28, 4,232.32 and 1,066.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,820.28 : 4,232.32 = 1,066.82 : x
2. Step 2: Convert to fraction form
   2,820.28/4,232.32 = 1,066.82/x
3. Step 3: Cross multiply
   2,820.28x = 4,232.32 × 1,066.82
4. Step 4: Simplify right side
   2,820.28x = 4,515,123.62
5. Step 5: Solve for x
   x = 4,515,123.62/2,820.28
6. Step 6: Final answer
   x = 1,600.95