Finding the Fourth Proportional to 1,041.04, 1,436.80 and 648.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,041.04 : 1,436.80 = 648.09 : x
2. Step 2: Convert to fraction form
   1,041.04/1,436.80 = 648.09/x
3. Step 3: Cross multiply
   1,041.04x = 1,436.80 × 648.09
4. Step 4: Simplify right side
   1,041.04x = 931,175.71
5. Step 5: Solve for x
   x = 931,175.71/1,041.04
6. Step 6: Final answer
   x = 894.47