Finding the Fourth Proportional to 1,288,646.67, 1,933,036.71 and 329,111.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,288,646.67 : 1,933,036.71 = 329,111.22 : x
2. Step 2: Convert to fraction form
   1,288,646.67/1,933,036.71 = 329,111.22/x
3. Step 3: Cross multiply
   1,288,646.67x = 1,933,036.71 × 329,111.22
4. Step 4: Simplify right side
   1,288,646.67x = 636,184,069,932.89
5. Step 5: Solve for x
   x = 636,184,069,932.89/1,288,646.67
6. Step 6: Final answer
   x = 493,683.87