Finding the Fourth Proportional to 1,047.32, 1,445.41 and 649.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.32 : 1,445.41 = 649.07 : x
2. Step 2: Convert to fraction form
   1,047.32/1,445.41 = 649.07/x
3. Step 3: Cross multiply
   1,047.32x = 1,445.41 × 649.07
4. Step 4: Simplify right side
   1,047.32x = 938,172.27
5. Step 5: Solve for x
   x = 938,172.27/1,047.32
6. Step 6: Final answer
   x = 895.78