Finding the Fourth Proportional to 2,500.47, 3,450.65 and 1,505.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.47 : 3,450.65 = 1,505.79 : x
2. Step 2: Convert to fraction form
   2,500.47/3,450.65 = 1,505.79/x
3. Step 3: Cross multiply
   2,500.47x = 3,450.65 × 1,505.79
4. Step 4: Simplify right side
   2,500.47x = 5,195,954.26
5. Step 5: Solve for x
   x = 5,195,954.26/2,500.47
6. Step 6: Final answer
   x = 2,077.99