Finding the Fourth Proportional to 1,851.75, 2,555.42 and 1,066.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,851.75 : 2,555.42 = 1,066.05 : x
2. Step 2: Convert to fraction form
   1,851.75/2,555.42 = 1,066.05/x
3. Step 3: Cross multiply
   1,851.75x = 2,555.42 × 1,066.05
4. Step 4: Simplify right side
   1,851.75x = 2,724,200.16
5. Step 5: Solve for x
   x = 2,724,200.16/1,851.75
6. Step 6: Final answer
   x = 1,471.15