Finding the Fourth Proportional to 2,112.48, 3,153.48 and 1,784.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.48 : 3,153.48 = 1,784.80 : x
2. Step 2: Convert to fraction form
   2,112.48/3,153.48 = 1,784.80/x
3. Step 3: Cross multiply
   2,112.48x = 3,153.48 × 1,784.80
4. Step 4: Simplify right side
   2,112.48x = 5,628,331.10
5. Step 5: Solve for x
   x = 5,628,331.10/2,112.48
6. Step 6: Final answer
   x = 2,664.32