Finding the Fourth Proportional to 1,028.34, 1,418.52 and 713.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,028.34 : 1,418.52 = 713.04 : x
2. Step 2: Convert to fraction form
   1,028.34/1,418.52 = 713.04/x
3. Step 3: Cross multiply
   1,028.34x = 1,418.52 × 713.04
4. Step 4: Simplify right side
   1,028.34x = 1,011,461.50
5. Step 5: Solve for x
   x = 1,011,461.50/1,028.34
6. Step 6: Final answer
   x = 983.59