Finding the Fourth Proportional to 1,147.45, 1,583.22 and 649.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,147.45 : 1,583.22 = 649.98 : x
2. Step 2: Convert to fraction form
   1,147.45/1,583.22 = 649.98/x
3. Step 3: Cross multiply
   1,147.45x = 1,583.22 × 649.98
4. Step 4: Simplify right side
   1,147.45x = 1,029,061.34
5. Step 5: Solve for x
   x = 1,029,061.34/1,147.45
6. Step 6: Final answer
   x = 896.82