Finding the Fourth Proportional to 1,433.30, 1,977.28 and 901.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.30 : 1,977.28 = 901.94 : x
2. Step 2: Convert to fraction form
   1,433.30/1,977.28 = 901.94/x
3. Step 3: Cross multiply
   1,433.30x = 1,977.28 × 901.94
4. Step 4: Simplify right side
   1,433.30x = 1,783,375.78
5. Step 5: Solve for x
   x = 1,783,375.78/1,433.30
6. Step 6: Final answer
   x = 1,244.25