Finding the Fourth Proportional to 1,061.64, 1,594.01 and 649.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.64 : 1,594.01 = 649.55 : x
2. Step 2: Convert to fraction form
   1,061.64/1,594.01 = 649.55/x
3. Step 3: Cross multiply
   1,061.64x = 1,594.01 × 649.55
4. Step 4: Simplify right side
   1,061.64x = 1,035,394.80
5. Step 5: Solve for x
   x = 1,035,394.80/1,061.64
6. Step 6: Final answer
   x = 975.28