Finding the Fourth Proportional to 1,155,715.94, 1,733,142.86 and 397,342.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155,715.94 : 1,733,142.86 = 397,342.68 : x
2. Step 2: Convert to fraction form
   1,155,715.94/1,733,142.86 = 397,342.68/x
3. Step 3: Cross multiply
   1,155,715.94x = 1,733,142.86 × 397,342.68
4. Step 4: Simplify right side
   1,155,715.94x = 688,651,628,815.27
5. Step 5: Solve for x
   x = 688,651,628,815.27/1,155,715.94
6. Step 6: Final answer
   x = 595,865.82