Finding the Fourth Proportional to 1,507.47, 2,080.43 and 844.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507.47 : 2,080.43 = 844.55 : x
2. Step 2: Convert to fraction form
   1,507.47/2,080.43 = 844.55/x
3. Step 3: Cross multiply
   1,507.47x = 2,080.43 × 844.55
4. Step 4: Simplify right side
   1,507.47x = 1,757,012.53
5. Step 5: Solve for x
   x = 1,757,012.53/1,507.47
6. Step 6: Final answer
   x = 1,165.54