Finding the Fourth Proportional to 2,869.95, 3,958.86 and 1,807.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,869.95 : 3,958.86 = 1,807.30 : x
2. Step 2: Convert to fraction form
   2,869.95/3,958.86 = 1,807.30/x
3. Step 3: Cross multiply
   2,869.95x = 3,958.86 × 1,807.30
4. Step 4: Simplify right side
   2,869.95x = 7,154,837.78
5. Step 5: Solve for x
   x = 7,154,837.78/2,869.95
6. Step 6: Final answer
   x = 2,493.02