Finding the Fourth Proportional to 1,507.89, 2,080.99 and 844.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507.89 : 2,080.99 = 844.70 : x
2. Step 2: Convert to fraction form
   1,507.89/2,080.99 = 844.70/x
3. Step 3: Cross multiply
   1,507.89x = 2,080.99 × 844.70
4. Step 4: Simplify right side
   1,507.89x = 1,757,812.25
5. Step 5: Solve for x
   x = 1,757,812.25/1,507.89
6. Step 6: Final answer
   x = 1,165.74