Finding the Fourth Proportional to 1,041.30, 1,435.53 and 648.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,041.30 : 1,435.53 = 648.06 : x
2. Step 2: Convert to fraction form
   1,041.30/1,435.53 = 648.06/x
3. Step 3: Cross multiply
   1,041.30x = 1,435.53 × 648.06
4. Step 4: Simplify right side
   1,041.30x = 930,309.57
5. Step 5: Solve for x
   x = 930,309.57/1,041.30
6. Step 6: Final answer
   x = 893.41