Finding the Fourth Proportional to 1,017.06, 1,528.16 and 976.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.06 : 1,528.16 = 976.05 : x
2. Step 2: Convert to fraction form
   1,017.06/1,528.16 = 976.05/x
3. Step 3: Cross multiply
   1,017.06x = 1,528.16 × 976.05
4. Step 4: Simplify right side
   1,017.06x = 1,491,561.42
5. Step 5: Solve for x
   x = 1,491,561.42/1,017.06
6. Step 6: Final answer
   x = 1,466.54