Finding the Fourth Proportional to 2,077.65, 3,114.45 and 1,858.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,077.65 : 3,114.45 = 1,858.95 : x
2. Step 2: Convert to fraction form
   2,077.65/3,114.45 = 1,858.95/x
3. Step 3: Cross multiply
   2,077.65x = 3,114.45 × 1,858.95
4. Step 4: Simplify right side
   2,077.65x = 5,789,606.83
5. Step 5: Solve for x
   x = 5,789,606.83/2,077.65
6. Step 6: Final answer
   x = 2,786.61