Finding the Fourth Proportional to 1,062.63, 1,594.12 and 646.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,062.63 : 1,594.12 = 646.47 : x
2. Step 2: Convert to fraction form
   1,062.63/1,594.12 = 646.47/x
3. Step 3: Cross multiply
   1,062.63x = 1,594.12 × 646.47
4. Step 4: Simplify right side
   1,062.63x = 1,030,557.29
5. Step 5: Solve for x
   x = 1,030,557.29/1,062.63
6. Step 6: Final answer
   x = 969.82