Finding the Fourth Proportional to 1,507.81, 2,080.79 and 844.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507.81 : 2,080.79 = 844.69 : x
2. Step 2: Convert to fraction form
   1,507.81/2,080.79 = 844.69/x
3. Step 3: Cross multiply
   1,507.81x = 2,080.79 × 844.69
4. Step 4: Simplify right side
   1,507.81x = 1,757,622.51
5. Step 5: Solve for x
   x = 1,757,622.51/1,507.81
6. Step 6: Final answer
   x = 1,165.68