Finding the Fourth Proportional to 752,105.86, 1,128,162.63 and 253,474.18

Step by Step Solution

1. Step 1: Write the proportion equation
   752,105.86 : 1,128,162.63 = 253,474.18 : x
2. Step 2: Convert to fraction form
   752,105.86/1,128,162.63 = 253,474.18/x
3. Step 3: Cross multiply
   752,105.86x = 1,128,162.63 × 253,474.18
4. Step 4: Simplify right side
   752,105.86x = 285,960,097,545.89
5. Step 5: Solve for x
   x = 285,960,097,545.89/752,105.86
6. Step 6: Final answer
   x = 380,212.56