Finding the Fourth Proportional to 1,601.63, 2,210.41 and 939.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601.63 : 2,210.41 = 939.03 : x
2. Step 2: Convert to fraction form
   1,601.63/2,210.41 = 939.03/x
3. Step 3: Cross multiply
   1,601.63x = 2,210.41 × 939.03
4. Step 4: Simplify right side
   1,601.63x = 2,075,641.30
5. Step 5: Solve for x
   x = 2,075,641.30/1,601.63
6. Step 6: Final answer
   x = 1,295.96