Finding the Fourth Proportional to 1,018.83, 1,527.49 and 652.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.83 : 1,527.49 = 652.91 : x
2. Step 2: Convert to fraction form
   1,018.83/1,527.49 = 652.91/x
3. Step 3: Cross multiply
   1,018.83x = 1,527.49 × 652.91
4. Step 4: Simplify right side
   1,018.83x = 997,313.50
5. Step 5: Solve for x
   x = 997,313.50/1,018.83
6. Step 6: Final answer
   x = 978.88