Finding the Fourth Proportional to 2,166.33, 2,986.82 and 1,807.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166.33 : 2,986.82 = 1,807.93 : x
2. Step 2: Convert to fraction form
   2,166.33/2,986.82 = 1,807.93/x
3. Step 3: Cross multiply
   2,166.33x = 2,986.82 × 1,807.93
4. Step 4: Simplify right side
   2,166.33x = 5,399,950.58
5. Step 5: Solve for x
   x = 5,399,950.58/2,166.33
6. Step 6: Final answer
   x = 2,492.68