Finding the Fourth Proportional to 2,389.38, 3,297.48 and 1,505.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.38 : 3,297.48 = 1,505.35 : x
2. Step 2: Convert to fraction form
   2,389.38/3,297.48 = 1,505.35/x
3. Step 3: Cross multiply
   2,389.38x = 3,297.48 × 1,505.35
4. Step 4: Simplify right side
   2,389.38x = 4,963,861.52
5. Step 5: Solve for x
   x = 4,963,861.52/2,389.38
6. Step 6: Final answer
   x = 2,077.47