Finding the Fourth Proportional to 1,860.52, 2,791.98 and 886.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,860.52 : 2,791.98 = 886.72 : x
2. Step 2: Convert to fraction form
   1,860.52/2,791.98 = 886.72/x
3. Step 3: Cross multiply
   1,860.52x = 2,791.98 × 886.72
4. Step 4: Simplify right side
   1,860.52x = 2,475,704.51
5. Step 5: Solve for x
   x = 2,475,704.51/1,860.52
6. Step 6: Final answer
   x = 1,330.65