Finding the Fourth Proportional to 1,152.38, 1,720.21 and 1,066.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.38 : 1,720.21 = 1,066.73 : x
2. Step 2: Convert to fraction form
   1,152.38/1,720.21 = 1,066.73/x
3. Step 3: Cross multiply
   1,152.38x = 1,720.21 × 1,066.73
4. Step 4: Simplify right side
   1,152.38x = 1,834,999.61
5. Step 5: Solve for x
   x = 1,834,999.61/1,152.38
6. Step 6: Final answer
   x = 1,592.36