Finding the Fourth Proportional to 1,066.82, 1,598.76 and 545.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.82 : 1,598.76 = 545.72 : x
2. Step 2: Convert to fraction form
   1,066.82/1,598.76 = 545.72/x
3. Step 3: Cross multiply
   1,066.82x = 1,598.76 × 545.72
4. Step 4: Simplify right side
   1,066.82x = 872,467.31
5. Step 5: Solve for x
   x = 872,467.31/1,066.82
6. Step 6: Final answer
   x = 817.82