Finding the Fourth Proportional to 1,922.88, 2,880.31 and 1,784.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,922.88 : 2,880.31 = 1,784.51 : x
2. Step 2: Convert to fraction form
   1,922.88/2,880.31 = 1,784.51/x
3. Step 3: Cross multiply
   1,922.88x = 2,880.31 × 1,784.51
4. Step 4: Simplify right side
   1,922.88x = 5,139,942.00
5. Step 5: Solve for x
   x = 5,139,942.00/1,922.88
6. Step 6: Final answer
   x = 2,673.04