Finding the Fourth Proportional to 1,601.04, 2,208.53 and 1,010.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601.04 : 2,208.53 = 1,010.55 : x
2. Step 2: Convert to fraction form
   1,601.04/2,208.53 = 1,010.55/x
3. Step 3: Cross multiply
   1,601.04x = 2,208.53 × 1,010.55
4. Step 4: Simplify right side
   1,601.04x = 2,231,840.80
5. Step 5: Solve for x
   x = 2,231,840.80/1,601.04
6. Step 6: Final answer
   x = 1,393.99