Finding the Fourth Proportional to 2,381.29, 3,572.67 and 1,066.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,381.29 : 3,572.67 = 1,066.15 : x
2. Step 2: Convert to fraction form
   2,381.29/3,572.67 = 1,066.15/x
3. Step 3: Cross multiply
   2,381.29x = 3,572.67 × 1,066.15
4. Step 4: Simplify right side
   2,381.29x = 3,809,002.12
5. Step 5: Solve for x
   x = 3,809,002.12/2,381.29
6. Step 6: Final answer
   x = 1,599.55