Finding the Fourth Proportional to 614,845.69, 848,488.56 and 342,931.20

Step by Step Solution

1. Step 1: Write the proportion equation
   614,845.69 : 848,488.56 = 342,931.20 : x
2. Step 2: Convert to fraction form
   614,845.69/848,488.56 = 342,931.20/x
3. Step 3: Cross multiply
   614,845.69x = 848,488.56 × 342,931.20
4. Step 4: Simplify right side
   614,845.69x = 290,973,200,067.07
5. Step 5: Solve for x
   x = 290,973,200,067.07/614,845.69
6. Step 6: Final answer
   x = 473,245.90