Finding the Fourth Proportional to 1,386.46, 2,079.42 and 737.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386.46 : 2,079.42 = 737.38 : x
2. Step 2: Convert to fraction form
   1,386.46/2,079.42 = 737.38/x
3. Step 3: Cross multiply
   1,386.46x = 2,079.42 × 737.38
4. Step 4: Simplify right side
   1,386.46x = 1,533,322.72
5. Step 5: Solve for x
   x = 1,533,322.72/1,386.46
6. Step 6: Final answer
   x = 1,105.93