Finding the Fourth Proportional to 1,185,294.42, 1,777,761.18 and 386,574.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185,294.42 : 1,777,761.18 = 386,574.69 : x
2. Step 2: Convert to fraction form
   1,185,294.42/1,777,761.18 = 386,574.69/x
3. Step 3: Cross multiply
   1,185,294.42x = 1,777,761.18 × 386,574.69
4. Step 4: Simplify right side
   1,185,294.42x = 687,237,477,052.53
5. Step 5: Solve for x
   x = 687,237,477,052.53/1,185,294.42
6. Step 6: Final answer
   x = 579,803.18