Finding the Fourth Proportional to 1,095.05, 1,511.20 and 597.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.05 : 1,511.20 = 597.72 : x
2. Step 2: Convert to fraction form
   1,095.05/1,511.20 = 597.72/x
3. Step 3: Cross multiply
   1,095.05x = 1,511.20 × 597.72
4. Step 4: Simplify right side
   1,095.05x = 903,273.72
5. Step 5: Solve for x
   x = 903,273.72/1,095.05
6. Step 6: Final answer
   x = 824.87