Finding the Fourth Proportional to 1,792.50, 2,687.76 and 1,207.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,792.50 : 2,687.76 = 1,207.47 : x
2. Step 2: Convert to fraction form
   1,792.50/2,687.76 = 1,207.47/x
3. Step 3: Cross multiply
   1,792.50x = 2,687.76 × 1,207.47
4. Step 4: Simplify right side
   1,792.50x = 3,245,389.57
5. Step 5: Solve for x
   x = 3,245,389.57/1,792.50
6. Step 6: Final answer
   x = 1,810.54