Finding the Fourth Proportional to 1,062.72, 1,602.05 and 972.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,062.72 : 1,602.05 = 972.48 : x
2. Step 2: Convert to fraction form
   1,062.72/1,602.05 = 972.48/x
3. Step 3: Cross multiply
   1,062.72x = 1,602.05 × 972.48
4. Step 4: Simplify right side
   1,062.72x = 1,557,961.58
5. Step 5: Solve for x
   x = 1,557,961.58/1,062.72
6. Step 6: Final answer
   x = 1,466.01