Finding the Fourth Proportional to 1,072.47, 1,480.06 and 652.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,072.47 : 1,480.06 = 652.75 : x
2. Step 2: Convert to fraction form
   1,072.47/1,480.06 = 652.75/x
3. Step 3: Cross multiply
   1,072.47x = 1,480.06 × 652.75
4. Step 4: Simplify right side
   1,072.47x = 966,111.83
5. Step 5: Solve for x
   x = 966,111.83/1,072.47
6. Step 6: Final answer
   x = 900.83