Finding the Fourth Proportional to 1,063.47, 1,467.50 and 591.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,063.47 : 1,467.50 = 591.31 : x
2. Step 2: Convert to fraction form
   1,063.47/1,467.50 = 591.31/x
3. Step 3: Cross multiply
   1,063.47x = 1,467.50 × 591.31
4. Step 4: Simplify right side
   1,063.47x = 867,740.09
5. Step 5: Solve for x
   x = 867,740.09/1,063.47
6. Step 6: Final answer
   x = 815.95