Finding the Fourth Proportional to 1,300.24, 1,792.38 and 1,122.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.24 : 1,792.38 = 1,122.40 : x
2. Step 2: Convert to fraction form
   1,300.24/1,792.38 = 1,122.40/x
3. Step 3: Cross multiply
   1,300.24x = 1,792.38 × 1,122.40
4. Step 4: Simplify right side
   1,300.24x = 2,011,767.31
5. Step 5: Solve for x
   x = 2,011,767.31/1,300.24
6. Step 6: Final answer
   x = 1,547.23