Finding the Fourth Proportional to 2,299.59, 3,172.30 and 1,502.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,299.59 : 3,172.30 = 1,502.55 : x
2. Step 2: Convert to fraction form
   2,299.59/3,172.30 = 1,502.55/x
3. Step 3: Cross multiply
   2,299.59x = 3,172.30 × 1,502.55
4. Step 4: Simplify right side
   2,299.59x = 4,766,539.37
5. Step 5: Solve for x
   x = 4,766,539.37/2,299.59
6. Step 6: Final answer
   x = 2,072.78