Finding the Fourth Proportional to 1,607.88, 2,218.72 and 944.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,607.88 : 2,218.72 = 944.61 : x
2. Step 2: Convert to fraction form
   1,607.88/2,218.72 = 944.61/x
3. Step 3: Cross multiply
   1,607.88x = 2,218.72 × 944.61
4. Step 4: Simplify right side
   1,607.88x = 2,095,825.10
5. Step 5: Solve for x
   x = 2,095,825.10/1,607.88
6. Step 6: Final answer
   x = 1,303.47