Finding the Fourth Proportional to 1,505.07, 2,077.82 and 907.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,505.07 : 2,077.82 = 907.67 : x
2. Step 2: Convert to fraction form
   1,505.07/2,077.82 = 907.67/x
3. Step 3: Cross multiply
   1,505.07x = 2,077.82 × 907.67
4. Step 4: Simplify right side
   1,505.07x = 1,885,974.88
5. Step 5: Solve for x
   x = 1,885,974.88/1,505.07
6. Step 6: Final answer
   x = 1,253.08