Finding the Fourth Proportional to 2,784.42, 3,809.52 and 2,772.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,784.42 : 3,809.52 = 2,772.81 : x
2. Step 2: Convert to fraction form
   2,784.42/3,809.52 = 2,772.81/x
3. Step 3: Cross multiply
   2,784.42x = 3,809.52 × 2,772.81
4. Step 4: Simplify right side
   2,784.42x = 10,563,075.15
5. Step 5: Solve for x
   x = 10,563,075.15/2,784.42
6. Step 6: Final answer
   x = 3,793.64