Finding the Fourth Proportional to 1,065.59, 1,469.84 and 711.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065.59 : 1,469.84 = 711.62 : x
2. Step 2: Convert to fraction form
   1,065.59/1,469.84 = 711.62/x
3. Step 3: Cross multiply
   1,065.59x = 1,469.84 × 711.62
4. Step 4: Simplify right side
   1,065.59x = 1,045,956.63
5. Step 5: Solve for x
   x = 1,045,956.63/1,065.59
6. Step 6: Final answer
   x = 981.58