Finding the Fourth Proportional to 1,601.46, 2,210.76 and 938.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601.46 : 2,210.76 = 938.22 : x
2. Step 2: Convert to fraction form
   1,601.46/2,210.76 = 938.22/x
3. Step 3: Cross multiply
   1,601.46x = 2,210.76 × 938.22
4. Step 4: Simplify right side
   1,601.46x = 2,074,179.25
5. Step 5: Solve for x
   x = 2,074,179.25/1,601.46
6. Step 6: Final answer
   x = 1,295.18