Finding the Fourth Proportional to 2,022.30, 3,012.20 and 1,927.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,022.30 : 3,012.20 = 1,927.50 : x
2. Step 2: Convert to fraction form
   2,022.30/3,012.20 = 1,927.50/x
3. Step 3: Cross multiply
   2,022.30x = 3,012.20 × 1,927.50
4. Step 4: Simplify right side
   2,022.30x = 5,806,005.86
5. Step 5: Solve for x
   x = 5,806,005.86/2,022.30
6. Step 6: Final answer
   x = 2,870.99