Finding the Fourth Proportional to 1,559.02, 2,150.91 and 886.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.02 : 2,150.91 = 886.75 : x
2. Step 2: Convert to fraction form
   1,559.02/2,150.91 = 886.75/x
3. Step 3: Cross multiply
   1,559.02x = 2,150.91 × 886.75
4. Step 4: Simplify right side
   1,559.02x = 1,907,315.01
5. Step 5: Solve for x
   x = 1,907,315.01/1,559.02
6. Step 6: Final answer
   x = 1,223.41