Finding the Fourth Proportional to 1,530.72, 2,292.72 and 1,236.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,530.72 : 2,292.72 = 1,236.96 : x
2. Step 2: Convert to fraction form
   1,530.72/2,292.72 = 1,236.96/x
3. Step 3: Cross multiply
   1,530.72x = 2,292.72 × 1,236.96
4. Step 4: Simplify right side
   1,530.72x = 2,836,002.93
5. Step 5: Solve for x
   x = 2,836,002.93/1,530.72
6. Step 6: Final answer
   x = 1,852.72