Finding the Fourth Proportional to 2,002.74, 3,005.63 and 907.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,002.74 : 3,005.63 = 907.86 : x
2. Step 2: Convert to fraction form
   2,002.74/3,005.63 = 907.86/x
3. Step 3: Cross multiply
   2,002.74x = 3,005.63 × 907.86
4. Step 4: Simplify right side
   2,002.74x = 2,728,691.25
5. Step 5: Solve for x
   x = 2,728,691.25/2,002.74
6. Step 6: Final answer
   x = 1,362.48