Finding the Fourth Proportional to 2,391.40, 3,300.54 and 1,507.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391.40 : 3,300.54 = 1,507.49 : x
2. Step 2: Convert to fraction form
   2,391.40/3,300.54 = 1,507.49/x
3. Step 3: Cross multiply
   2,391.40x = 3,300.54 × 1,507.49
4. Step 4: Simplify right side
   2,391.40x = 4,975,531.04
5. Step 5: Solve for x
   x = 4,975,531.04/2,391.40
6. Step 6: Final answer
   x = 2,080.59