Finding the Fourth Proportional to 1,772.69, 2,660.39 and 1,156.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,772.69 : 2,660.39 = 1,156.22 : x
2. Step 2: Convert to fraction form
   1,772.69/2,660.39 = 1,156.22/x
3. Step 3: Cross multiply
   1,772.69x = 2,660.39 × 1,156.22
4. Step 4: Simplify right side
   1,772.69x = 3,076,012.82
5. Step 5: Solve for x
   x = 3,076,012.82/1,772.69
6. Step 6: Final answer
   x = 1,735.23