Finding the Fourth Proportional to 1,800.72, 2,705.40 and 1,152.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,800.72 : 2,705.40 = 1,152.72 : x
2. Step 2: Convert to fraction form
   1,800.72/2,705.40 = 1,152.72/x
3. Step 3: Cross multiply
   1,800.72x = 2,705.40 × 1,152.72
4. Step 4: Simplify right side
   1,800.72x = 3,118,568.69
5. Step 5: Solve for x
   x = 3,118,568.69/1,800.72
6. Step 6: Final answer
   x = 1,731.85