Finding the Fourth Proportional to 1,185,769.72, 1,778,703.79 and 344,321.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185,769.72 : 1,778,703.79 = 344,321.47 : x
2. Step 2: Convert to fraction form
   1,185,769.72/1,778,703.79 = 344,321.47/x
3. Step 3: Cross multiply
   1,185,769.72x = 1,778,703.79 × 344,321.47
4. Step 4: Simplify right side
   1,185,769.72x = 612,445,903,667.37
5. Step 5: Solve for x
   x = 612,445,903,667.37/1,185,769.72
6. Step 6: Final answer
   x = 516,496.49