Finding the Fourth Proportional to 1,608.88, 2,211.73 and 1,383.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,608.88 : 2,211.73 = 1,383.99 : x
2. Step 2: Convert to fraction form
   1,608.88/2,211.73 = 1,383.99/x
3. Step 3: Cross multiply
   1,608.88x = 2,211.73 × 1,383.99
4. Step 4: Simplify right side
   1,608.88x = 3,060,994.22
5. Step 5: Solve for x
   x = 3,060,994.22/1,608.88
6. Step 6: Final answer
   x = 1,902.57