Finding the Fourth Proportional to 2,083.80, 3,111.20 and 1,876.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.80 : 3,111.20 = 1,876.44 : x
2. Step 2: Convert to fraction form
   2,083.80/3,111.20 = 1,876.44/x
3. Step 3: Cross multiply
   2,083.80x = 3,111.20 × 1,876.44
4. Step 4: Simplify right side
   2,083.80x = 5,837,970.75
5. Step 5: Solve for x
   x = 5,837,970.75/2,083.80
6. Step 6: Final answer
   x = 2,801.60