Finding the Fourth Proportional to 1,219,111.48, 1,828,673.30 and 499,846.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,219,111.48 : 1,828,673.30 = 499,846.06 : x
2. Step 2: Convert to fraction form
   1,219,111.48/1,828,673.30 = 499,846.06/x
3. Step 3: Cross multiply
   1,219,111.48x = 1,828,673.30 × 499,846.06
4. Step 4: Simplify right side
   1,219,111.48x = 914,055,147,567.66
5. Step 5: Solve for x
   x = 914,055,147,567.66/1,219,111.48
6. Step 6: Final answer
   x = 749,771.58