Finding the Fourth Proportional to 1,559.01, 2,151.48 and 886.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.01 : 2,151.48 = 886.93 : x
2. Step 2: Convert to fraction form
   1,559.01/2,151.48 = 886.93/x
3. Step 3: Cross multiply
   1,559.01x = 2,151.48 × 886.93
4. Step 4: Simplify right side
   1,559.01x = 1,908,196.96
5. Step 5: Solve for x
   x = 1,908,196.96/1,559.01
6. Step 6: Final answer
   x = 1,223.98