Finding the Fourth Proportional to 2,091.42, 3,134.70 and 1,681.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.42 : 3,134.70 = 1,681.02 : x
2. Step 2: Convert to fraction form
   2,091.42/3,134.70 = 1,681.02/x
3. Step 3: Cross multiply
   2,091.42x = 3,134.70 × 1,681.02
4. Step 4: Simplify right side
   2,091.42x = 5,269,493.39
5. Step 5: Solve for x
   x = 5,269,493.39/2,091.42
6. Step 6: Final answer
   x = 2,519.58