Finding the Fourth Proportional to 1,607.72, 2,218.54 and 944.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,607.72 : 2,218.54 = 944.60 : x
2. Step 2: Convert to fraction form
   1,607.72/2,218.54 = 944.60/x
3. Step 3: Cross multiply
   1,607.72x = 2,218.54 × 944.60
4. Step 4: Simplify right side
   1,607.72x = 2,095,632.88
5. Step 5: Solve for x
   x = 2,095,632.88/1,607.72
6. Step 6: Final answer
   x = 1,303.48