Finding the Fourth Proportional to 1,895.61, 2,614.72 and 1,224.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,895.61 : 2,614.72 = 1,224.28 : x
2. Step 2: Convert to fraction form
   1,895.61/2,614.72 = 1,224.28/x
3. Step 3: Cross multiply
   1,895.61x = 2,614.72 × 1,224.28
4. Step 4: Simplify right side
   1,895.61x = 3,201,149.40
5. Step 5: Solve for x
   x = 3,201,149.40/1,895.61
6. Step 6: Final answer
   x = 1,688.72