Finding the Fourth Proportional to 1,857.42, 2,563.46 and 1,061.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,857.42 : 2,563.46 = 1,061.02 : x
2. Step 2: Convert to fraction form
   1,857.42/2,563.46 = 1,061.02/x
3. Step 3: Cross multiply
   1,857.42x = 2,563.46 × 1,061.02
4. Step 4: Simplify right side
   1,857.42x = 2,719,882.33
5. Step 5: Solve for x
   x = 2,719,882.33/1,857.42
6. Step 6: Final answer
   x = 1,464.33