Finding the Fourth Proportional to 694,086.24, 957,887.82 and 388,191.09

Step by Step Solution

1. Step 1: Write the proportion equation
   694,086.24 : 957,887.82 = 388,191.09 : x
2. Step 2: Convert to fraction form
   694,086.24/957,887.82 = 388,191.09/x
3. Step 3: Cross multiply
   694,086.24x = 957,887.82 × 388,191.09
4. Step 4: Simplify right side
   694,086.24x = 371,843,516,943.52
5. Step 5: Solve for x
   x = 371,843,516,943.52/694,086.24
6. Step 6: Final answer
   x = 535,731.00