Finding the Fourth Proportional to 1,384.77, 2,069.06 and 1,336.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384.77 : 2,069.06 = 1,336.34 : x
2. Step 2: Convert to fraction form
   1,384.77/2,069.06 = 1,336.34/x
3. Step 3: Cross multiply
   1,384.77x = 2,069.06 × 1,336.34
4. Step 4: Simplify right side
   1,384.77x = 2,764,976.15
5. Step 5: Solve for x
   x = 2,764,976.15/1,384.77
6. Step 6: Final answer
   x = 1,996.70