Finding the Fourth Proportional to 1,300.80, 1,792.52 and 927.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.80 : 1,792.52 = 927.12 : x
2. Step 2: Convert to fraction form
   1,300.80/1,792.52 = 927.12/x
3. Step 3: Cross multiply
   1,300.80x = 1,792.52 × 927.12
4. Step 4: Simplify right side
   1,300.80x = 1,661,881.14
5. Step 5: Solve for x
   x = 1,661,881.14/1,300.80
6. Step 6: Final answer
   x = 1,277.58