Finding the Fourth Proportional to 3,670.76, 5,065.59 and 1,992.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,670.76 : 5,065.59 = 1,992.17 : x
2. Step 2: Convert to fraction form
   3,670.76/5,065.59 = 1,992.17/x
3. Step 3: Cross multiply
   3,670.76x = 5,065.59 × 1,992.17
4. Step 4: Simplify right side
   3,670.76x = 10,091,491.10
5. Step 5: Solve for x
   x = 10,091,491.10/3,670.76
6. Step 6: Final answer
   x = 2,749.16