Finding the Fourth Proportional to 1,181,139.94, 1,771,991.49 and 382,421.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,181,139.94 : 1,771,991.49 = 382,421.72 : x
2. Step 2: Convert to fraction form
   1,181,139.94/1,771,991.49 = 382,421.72/x
3. Step 3: Cross multiply
   1,181,139.94x = 1,771,991.49 × 382,421.72
4. Step 4: Simplify right side
   1,181,139.94x = 677,648,039,295.22
5. Step 5: Solve for x
   x = 677,648,039,295.22/1,181,139.94
6. Step 6: Final answer
   x = 573,723.75