Finding the Fourth Proportional to 2,116.48, 3,174.56 and 729.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.48 : 3,174.56 = 729.76 : x
2. Step 2: Convert to fraction form
   2,116.48/3,174.56 = 729.76/x
3. Step 3: Cross multiply
   2,116.48x = 3,174.56 × 729.76
4. Step 4: Simplify right side
   2,116.48x = 2,316,666.91
5. Step 5: Solve for x
   x = 2,316,666.91/2,116.48
6. Step 6: Final answer
   x = 1,094.58