Finding the Fourth Proportional to 2,091.36, 3,132.55 and 1,694.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.36 : 3,132.55 = 1,694.30 : x
2. Step 2: Convert to fraction form
   2,091.36/3,132.55 = 1,694.30/x
3. Step 3: Cross multiply
   2,091.36x = 3,132.55 × 1,694.30
4. Step 4: Simplify right side
   2,091.36x = 5,307,459.57
5. Step 5: Solve for x
   x = 5,307,459.57/2,091.36
6. Step 6: Final answer
   x = 2,537.80