Finding the Fourth Proportional to 1,797.63, 2,480.76 and 1,011.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,797.63 : 2,480.76 = 1,011.72 : x
2. Step 2: Convert to fraction form
   1,797.63/2,480.76 = 1,011.72/x
3. Step 3: Cross multiply
   1,797.63x = 2,480.76 × 1,011.72
4. Step 4: Simplify right side
   1,797.63x = 2,509,834.51
5. Step 5: Solve for x
   x = 2,509,834.51/1,797.63
6. Step 6: Final answer
   x = 1,396.19