Finding the Fourth Proportional to 1,538,651.61, 2,123,227.98 and 850,315.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,538,651.61 : 2,123,227.98 = 850,315.23 : x
2. Step 2: Convert to fraction form
   1,538,651.61/2,123,227.98 = 850,315.23/x
3. Step 3: Cross multiply
   1,538,651.61x = 2,123,227.98 × 850,315.23
4. Step 4: Simplify right side
   1,538,651.61x = 1,805,413,088,156.14
5. Step 5: Solve for x
   x = 1,805,413,088,156.14/1,538,651.61
6. Step 6: Final answer
   x = 1,173,373.54