Finding the Fourth Proportional to 2,085.30, 3,113.43 and 1,877.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.30 : 3,113.43 = 1,877.94 : x
2. Step 2: Convert to fraction form
   2,085.30/3,113.43 = 1,877.94/x
3. Step 3: Cross multiply
   2,085.30x = 3,113.43 × 1,877.94
4. Step 4: Simplify right side
   2,085.30x = 5,846,834.73
5. Step 5: Solve for x
   x = 5,846,834.73/2,085.30
6. Step 6: Final answer
   x = 2,803.83