Finding the Fourth Proportional to 2,114.20, 3,156.02 and 1,855

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.20 : 3,156.02 = 1,855 : x
2. Step 2: Convert to fraction form
   2,114.20/3,156.02 = 1,855/x
3. Step 3: Cross multiply
   2,114.20x = 3,156.02 × 1,855
4. Step 4: Simplify right side
   2,114.20x = 5,854,417.10
5. Step 5: Solve for x
   x = 5,854,417.10/2,114.20
6. Step 6: Final answer
   x = 2,769.09