Finding the Fourth Proportional to 1,507.77, 2,080.69 and 844.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507.77 : 2,080.69 = 844.61 : x
2. Step 2: Convert to fraction form
   1,507.77/2,080.69 = 844.61/x
3. Step 3: Cross multiply
   1,507.77x = 2,080.69 × 844.61
4. Step 4: Simplify right side
   1,507.77x = 1,757,359.07
5. Step 5: Solve for x
   x = 1,757,359.07/1,507.77
6. Step 6: Final answer
   x = 1,165.54