Finding the Fourth Proportional to 1,386.02, 2,076.69 and 1,092.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386.02 : 2,076.69 = 1,092.35 : x
2. Step 2: Convert to fraction form
   1,386.02/2,076.69 = 1,092.35/x
3. Step 3: Cross multiply
   1,386.02x = 2,076.69 × 1,092.35
4. Step 4: Simplify right side
   1,386.02x = 2,268,472.32
5. Step 5: Solve for x
   x = 2,268,472.32/1,386.02
6. Step 6: Final answer
   x = 1,636.68