Finding the Fourth Proportional to 867,096.50, 1,196,614.42 and 485,148.02

Step by Step Solution

1. Step 1: Write the proportion equation
   867,096.50 : 1,196,614.42 = 485,148.02 : x
2. Step 2: Convert to fraction form
   867,096.50/1,196,614.42 = 485,148.02/x
3. Step 3: Cross multiply
   867,096.50x = 1,196,614.42 × 485,148.02
4. Step 4: Simplify right side
   867,096.50x = 580,535,109,370.51
5. Step 5: Solve for x
   x = 580,535,109,370.51/867,096.50
6. Step 6: Final answer
   x = 669,516.15