Finding the Fourth Proportional to 1,345.49, 2,018.15 and 801.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.49 : 2,018.15 = 801.14 : x
2. Step 2: Convert to fraction form
   1,345.49/2,018.15 = 801.14/x
3. Step 3: Cross multiply
   1,345.49x = 2,018.15 × 801.14
4. Step 4: Simplify right side
   1,345.49x = 1,616,806.59
5. Step 5: Solve for x
   x = 1,616,806.59/1,345.49
6. Step 6: Final answer
   x = 1,201.65