Finding the Fourth Proportional to 3,457.46, 5,186.34 and 992.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,457.46 : 5,186.34 = 992.03 : x
2. Step 2: Convert to fraction form
   3,457.46/5,186.34 = 992.03/x
3. Step 3: Cross multiply
   3,457.46x = 5,186.34 × 992.03
4. Step 4: Simplify right side
   3,457.46x = 5,144,978.94
5. Step 5: Solve for x
   x = 5,144,978.94/3,457.46
6. Step 6: Final answer
   x = 1,488.08