Finding the Fourth Proportional to 1,477.72, 2,039.17 and 848.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,477.72 : 2,039.17 = 848.12 : x
2. Step 2: Convert to fraction form
   1,477.72/2,039.17 = 848.12/x
3. Step 3: Cross multiply
   1,477.72x = 2,039.17 × 848.12
4. Step 4: Simplify right side
   1,477.72x = 1,729,460.86
5. Step 5: Solve for x
   x = 1,729,460.86/1,477.72
6. Step 6: Final answer
   x = 1,170.36