Finding the Fourth Proportional to 2,772.81, 4,159.98 and 1,384.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,772.81 : 4,159.98 = 1,384.47 : x
2. Step 2: Convert to fraction form
   2,772.81/4,159.98 = 1,384.47/x
3. Step 3: Cross multiply
   2,772.81x = 4,159.98 × 1,384.47
4. Step 4: Simplify right side
   2,772.81x = 5,759,367.51
5. Step 5: Solve for x
   x = 5,759,367.51/2,772.81
6. Step 6: Final answer
   x = 2,077.09