Finding the Fourth Proportional to 2,091.63, 3,134.69 and 1,167.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.63 : 3,134.69 = 1,167.62 : x
2. Step 2: Convert to fraction form
   2,091.63/3,134.69 = 1,167.62/x
3. Step 3: Cross multiply
   2,091.63x = 3,134.69 × 1,167.62
4. Step 4: Simplify right side
   2,091.63x = 3,660,126.74
5. Step 5: Solve for x
   x = 3,660,126.74/2,091.63
6. Step 6: Final answer
   x = 1,749.90