Finding the Fourth Proportional to 2,451.50, 3,678.28 and 1,066.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,451.50 : 3,678.28 = 1,066.00 : x
2. Step 2: Convert to fraction form
   2,451.50/3,678.28 = 1,066.00/x
3. Step 3: Cross multiply
   2,451.50x = 3,678.28 × 1,066.00
4. Step 4: Simplify right side
   2,451.50x = 3,921,061.87
5. Step 5: Solve for x
   x = 3,921,061.87/2,451.50
6. Step 6: Final answer
   x = 1,599.45