Finding the Fourth Proportional to 2,807.74, 3,876.27 and 1,864.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,807.74 : 3,876.27 = 1,864.82 : x
2. Step 2: Convert to fraction form
   2,807.74/3,876.27 = 1,864.82/x
3. Step 3: Cross multiply
   2,807.74x = 3,876.27 × 1,864.82
4. Step 4: Simplify right side
   2,807.74x = 7,228,536.50
5. Step 5: Solve for x
   x = 7,228,536.50/2,807.74
6. Step 6: Final answer
   x = 2,574.51