Finding the Fourth Proportional to 1,507.88, 2,080.86 and 844.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507.88 : 2,080.86 = 844.76 : x
2. Step 2: Convert to fraction form
   1,507.88/2,080.86 = 844.76/x
3. Step 3: Cross multiply
   1,507.88x = 2,080.86 × 844.76
4. Step 4: Simplify right side
   1,507.88x = 1,757,827.29
5. Step 5: Solve for x
   x = 1,757,827.29/1,507.88
6. Step 6: Final answer
   x = 1,165.76