Finding the Fourth Proportional to 2,580.88, 3,868.22 and 1,192.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580.88 : 3,868.22 = 1,192.28 : x
2. Step 2: Convert to fraction form
   2,580.88/3,868.22 = 1,192.28/x
3. Step 3: Cross multiply
   2,580.88x = 3,868.22 × 1,192.28
4. Step 4: Simplify right side
   2,580.88x = 4,612,001.34
5. Step 5: Solve for x
   x = 4,612,001.34/2,580.88
6. Step 6: Final answer
   x = 1,786.99