Finding the Fourth Proportional to 2,552.61, 3,522.78 and 1,505.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,552.61 : 3,522.78 = 1,505.28 : x
2. Step 2: Convert to fraction form
   2,552.61/3,522.78 = 1,505.28/x
3. Step 3: Cross multiply
   2,552.61x = 3,522.78 × 1,505.28
4. Step 4: Simplify right side
   2,552.61x = 5,302,770.28
5. Step 5: Solve for x
   x = 5,302,770.28/2,552.61
6. Step 6: Final answer
   x = 2,077.39