Finding the Fourth Proportional to 1,505.47, 2,077.82 and 908.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,505.47 : 2,077.82 = 908.45 : x
2. Step 2: Convert to fraction form
   1,505.47/2,077.82 = 908.45/x
3. Step 3: Cross multiply
   1,505.47x = 2,077.82 × 908.45
4. Step 4: Simplify right side
   1,505.47x = 1,887,595.58
5. Step 5: Solve for x
   x = 1,887,595.58/1,505.47
6. Step 6: Final answer
   x = 1,253.82