Finding the Fourth Proportional to 3,457.50, 5,186.52 and 1,266.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,457.50 : 5,186.52 = 1,266.18 : x
2. Step 2: Convert to fraction form
   3,457.50/5,186.52 = 1,266.18/x
3. Step 3: Cross multiply
   3,457.50x = 5,186.52 × 1,266.18
4. Step 4: Simplify right side
   3,457.50x = 6,567,061.56
5. Step 5: Solve for x
   x = 6,567,061.56/3,457.50
6. Step 6: Final answer
   x = 1,899.37