Finding the Fourth Proportional to 1,386.96, 2,079.83 and 737.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386.96 : 2,079.83 = 737.55 : x
2. Step 2: Convert to fraction form
   1,386.96/2,079.83 = 737.55/x
3. Step 3: Cross multiply
   1,386.96x = 2,079.83 × 737.55
4. Step 4: Simplify right side
   1,386.96x = 1,533,978.62
5. Step 5: Solve for x
   x = 1,533,978.62/1,386.96
6. Step 6: Final answer
   x = 1,106.00