Finding the Fourth Proportional to 2,830.89, 4,240.82 and 1,854.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,830.89 : 4,240.82 = 1,854.03 : x
2. Step 2: Convert to fraction form
   2,830.89/4,240.82 = 1,854.03/x
3. Step 3: Cross multiply
   2,830.89x = 4,240.82 × 1,854.03
4. Step 4: Simplify right side
   2,830.89x = 7,862,607.50
5. Step 5: Solve for x
   x = 7,862,607.50/2,830.89
6. Step 6: Final answer
   x = 2,777.43