Finding the Fourth Proportional to 1,118,667.83, 1,678,068.05 and 350,309.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118,667.83 : 1,678,068.05 = 350,309.25 : x
2. Step 2: Convert to fraction form
   1,118,667.83/1,678,068.05 = 350,309.25/x
3. Step 3: Cross multiply
   1,118,667.83x = 1,678,068.05 × 350,309.25
4. Step 4: Simplify right side
   1,118,667.83x = 587,842,758,292.92
5. Step 5: Solve for x
   x = 587,842,758,292.92/1,118,667.83
6. Step 6: Final answer
   x = 525,484.64