Finding the Fourth Proportional to 1,853.55, 2,781.72 and 1,367.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,853.55 : 2,781.72 = 1,367.91 : x
2. Step 2: Convert to fraction form
   1,853.55/2,781.72 = 1,367.91/x
3. Step 3: Cross multiply
   1,853.55x = 2,781.72 × 1,367.91
4. Step 4: Simplify right side
   1,853.55x = 3,805,142.61
5. Step 5: Solve for x
   x = 3,805,142.61/1,853.55
6. Step 6: Final answer
   x = 2,052.89