Finding the Fourth Proportional to 1,617.56, 2,233.80 and 1,394.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,617.56 : 2,233.80 = 1,394.42 : x
2. Step 2: Convert to fraction form
   1,617.56/2,233.80 = 1,394.42/x
3. Step 3: Cross multiply
   1,617.56x = 2,233.80 × 1,394.42
4. Step 4: Simplify right side
   1,617.56x = 3,114,855.40
5. Step 5: Solve for x
   x = 3,114,855.40/1,617.56
6. Step 6: Final answer
   x = 1,925.65