Finding the Fourth Proportional to 1,801.72, 2,706.90 and 1,153.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,801.72 : 2,706.90 = 1,153.72 : x
2. Step 2: Convert to fraction form
   1,801.72/2,706.90 = 1,153.72/x
3. Step 3: Cross multiply
   1,801.72x = 2,706.90 × 1,153.72
4. Step 4: Simplify right side
   1,801.72x = 3,123,004.67
5. Step 5: Solve for x
   x = 3,123,004.67/1,801.72
6. Step 6: Final answer
   x = 1,733.35