Finding the Fourth Proportional to 1,043.61, 1,441.37 and 903.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,043.61 : 1,441.37 = 903.50 : x
2. Step 2: Convert to fraction form
   1,043.61/1,441.37 = 903.50/x
3. Step 3: Cross multiply
   1,043.61x = 1,441.37 × 903.50
4. Step 4: Simplify right side
   1,043.61x = 1,302,283.82
5. Step 5: Solve for x
   x = 1,302,283.82/1,043.61
6. Step 6: Final answer
   x = 1,247.87