Finding the Fourth Proportional to 1,665,123.50, 2,498,681.67 and 718,494.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665,123.50 : 2,498,681.67 = 718,494.22 : x
2. Step 2: Convert to fraction form
   1,665,123.50/2,498,681.67 = 718,494.22/x
3. Step 3: Cross multiply
   1,665,123.50x = 2,498,681.67 × 718,494.22
4. Step 4: Simplify right side
   1,665,123.50x = 1,795,288,337,514.95
5. Step 5: Solve for x
   x = 1,795,288,337,514.95/1,665,123.50
6. Step 6: Final answer
   x = 1,078,171.28