Finding the Fourth Proportional to 1,066.91, 1,472.30 and 594.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.91 : 1,472.30 = 594.78 : x
2. Step 2: Convert to fraction form
   1,066.91/1,472.30 = 594.78/x
3. Step 3: Cross multiply
   1,066.91x = 1,472.30 × 594.78
4. Step 4: Simplify right side
   1,066.91x = 875,695.30
5. Step 5: Solve for x
   x = 875,695.30/1,066.91
6. Step 6: Final answer
   x = 820.78