Finding the Fourth Proportional to 2,454.19, 3,679.20 and 1,066.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,454.19 : 3,679.20 = 1,066.47 : x
2. Step 2: Convert to fraction form
   2,454.19/3,679.20 = 1,066.47/x
3. Step 3: Cross multiply
   2,454.19x = 3,679.20 × 1,066.47
4. Step 4: Simplify right side
   2,454.19x = 3,923,756.42
5. Step 5: Solve for x
   x = 3,923,756.42/2,454.19
6. Step 6: Final answer
   x = 1,598.80