Finding the Fourth Proportional to 2,120.82, 2,928.06 and 1,336.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,120.82 : 2,928.06 = 1,336.02 : x
2. Step 2: Convert to fraction form
   2,120.82/2,928.06 = 1,336.02/x
3. Step 3: Cross multiply
   2,120.82x = 2,928.06 × 1,336.02
4. Step 4: Simplify right side
   2,120.82x = 3,911,946.72
5. Step 5: Solve for x
   x = 3,911,946.72/2,120.82
6. Step 6: Final answer
   x = 1,844.54