Finding the Fourth Proportional to 1,529.34, 2,110.49 and 830.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,529.34 : 2,110.49 = 830.72 : x
2. Step 2: Convert to fraction form
   1,529.34/2,110.49 = 830.72/x
3. Step 3: Cross multiply
   1,529.34x = 2,110.49 × 830.72
4. Step 4: Simplify right side
   1,529.34x = 1,753,226.25
5. Step 5: Solve for x
   x = 1,753,226.25/1,529.34
6. Step 6: Final answer
   x = 1,146.39