Finding the Fourth Proportional to 848,131.69, 1,272,828.22 and 342,697.07

Step by Step Solution

1. Step 1: Write the proportion equation
   848,131.69 : 1,272,828.22 = 342,697.07 : x
2. Step 2: Convert to fraction form
   848,131.69/1,272,828.22 = 342,697.07/x
3. Step 3: Cross multiply
   848,131.69x = 1,272,828.22 × 342,697.07
4. Step 4: Simplify right side
   848,131.69x = 436,194,494,386.43
5. Step 5: Solve for x
   x = 436,194,494,386.43/848,131.69
6. Step 6: Final answer
   x = 514,300.43