Finding the Fourth Proportional to 1,538,863.98, 2,123,742.23 and 850,521.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,538,863.98 : 2,123,742.23 = 850,521.03 : x
2. Step 2: Convert to fraction form
   1,538,863.98/2,123,742.23 = 850,521.03/x
3. Step 3: Cross multiply
   1,538,863.98x = 2,123,742.23 × 850,521.03
4. Step 4: Simplify right side
   1,538,863.98x = 1,806,287,428,914.10
5. Step 5: Solve for x
   x = 1,806,287,428,914.10/1,538,863.98
6. Step 6: Final answer
   x = 1,173,779.78