Finding the Fourth Proportional to 2,600.78, 3,588.99 and 1,552.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,600.78 : 3,588.99 = 1,552.22 : x
2. Step 2: Convert to fraction form
   2,600.78/3,588.99 = 1,552.22/x
3. Step 3: Cross multiply
   2,600.78x = 3,588.99 × 1,552.22
4. Step 4: Simplify right side
   2,600.78x = 5,570,902.06
5. Step 5: Solve for x
   x = 5,570,902.06/2,600.78
6. Step 6: Final answer
   x = 2,142.01