Finding the Fourth Proportional to 1,505.52, 2,076.78 and 907.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,505.52 : 2,076.78 = 907.62 : x
2. Step 2: Convert to fraction form
   1,505.52/2,076.78 = 907.62/x
3. Step 3: Cross multiply
   1,505.52x = 2,076.78 × 907.62
4. Step 4: Simplify right side
   1,505.52x = 1,884,927.06
5. Step 5: Solve for x
   x = 1,884,927.06/1,505.52
6. Step 6: Final answer
   x = 1,252.01