Finding the Fourth Proportional to 1,349.72, 1,861.62 and 1,018.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,349.72 : 1,861.62 = 1,018.16 : x
2. Step 2: Convert to fraction form
   1,349.72/1,861.62 = 1,018.16/x
3. Step 3: Cross multiply
   1,349.72x = 1,861.62 × 1,018.16
4. Step 4: Simplify right side
   1,349.72x = 1,895,427.02
5. Step 5: Solve for x
   x = 1,895,427.02/1,349.72
6. Step 6: Final answer
   x = 1,404.31