Finding the Fourth Proportional to 1,338.86, 1,843.80 and 1,255.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.86 : 1,843.80 = 1,255.52 : x
2. Step 2: Convert to fraction form
   1,338.86/1,843.80 = 1,255.52/x
3. Step 3: Cross multiply
   1,338.86x = 1,843.80 × 1,255.52
4. Step 4: Simplify right side
   1,338.86x = 2,314,927.78
5. Step 5: Solve for x
   x = 2,314,927.78/1,338.86
6. Step 6: Final answer
   x = 1,729.03