Finding the Fourth Proportional to 1,840.89, 2,540.79 and 1,055.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,840.89 : 2,540.79 = 1,055.46 : x
2. Step 2: Convert to fraction form
   1,840.89/2,540.79 = 1,055.46/x
3. Step 3: Cross multiply
   1,840.89x = 2,540.79 × 1,055.46
4. Step 4: Simplify right side
   1,840.89x = 2,681,702.21
5. Step 5: Solve for x
   x = 2,681,702.21/1,840.89
6. Step 6: Final answer
   x = 1,456.74