Finding the Fourth Proportional to 1,851.88, 2,773.98 and 1,081.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,851.88 : 2,773.98 = 1,081.96 : x
2. Step 2: Convert to fraction form
   1,851.88/2,773.98 = 1,081.96/x
3. Step 3: Cross multiply
   1,851.88x = 2,773.98 × 1,081.96
4. Step 4: Simplify right side
   1,851.88x = 3,001,335.40
5. Step 5: Solve for x
   x = 3,001,335.40/1,851.88
6. Step 6: Final answer
   x = 1,620.70