Finding the Fourth Proportional to 2,219.06, 3,062.50 and 1,287.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.06 : 3,062.50 = 1,287.38 : x
2. Step 2: Convert to fraction form
   2,219.06/3,062.50 = 1,287.38/x
3. Step 3: Cross multiply
   2,219.06x = 3,062.50 × 1,287.38
4. Step 4: Simplify right side
   2,219.06x = 3,942,582.72
5. Step 5: Solve for x
   x = 3,942,582.72/2,219.06
6. Step 6: Final answer
   x = 1,776.69