Finding the Fourth Proportional to 1,574.10, 2,361.69 and 1,086.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,574.10 : 2,361.69 = 1,086.75 : x
2. Step 2: Convert to fraction form
   1,574.10/2,361.69 = 1,086.75/x
3. Step 3: Cross multiply
   1,574.10x = 2,361.69 × 1,086.75
4. Step 4: Simplify right side
   1,574.10x = 2,566,566.61
5. Step 5: Solve for x
   x = 2,566,566.61/1,574.10
6. Step 6: Final answer
   x = 1,630.50