Finding the Fourth Proportional to 1,507.94, 2,080.96 and 910.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507.94 : 2,080.96 = 910.46 : x
2. Step 2: Convert to fraction form
   1,507.94/2,080.96 = 910.46/x
3. Step 3: Cross multiply
   1,507.94x = 2,080.96 × 910.46
4. Step 4: Simplify right side
   1,507.94x = 1,894,621.57
5. Step 5: Solve for x
   x = 1,894,621.57/1,507.94
6. Step 6: Final answer
   x = 1,256.43