Finding the Fourth Proportional to 1,386.18, 2,077.25 and 801.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386.18 : 2,077.25 = 801.14 : x
2. Step 2: Convert to fraction form
   1,386.18/2,077.25 = 801.14/x
3. Step 3: Cross multiply
   1,386.18x = 2,077.25 × 801.14
4. Step 4: Simplify right side
   1,386.18x = 1,664,153.67
5. Step 5: Solve for x
   x = 1,664,153.67/1,386.18
6. Step 6: Final answer
   x = 1,200.53