Finding the Fourth Proportional to 1,139,185.98, 1,709,038.17 and 606,426.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,185.98 : 1,709,038.17 = 606,426.30 : x
2. Step 2: Convert to fraction form
   1,139,185.98/1,709,038.17 = 606,426.30/x
3. Step 3: Cross multiply
   1,139,185.98x = 1,709,038.17 × 606,426.30
4. Step 4: Simplify right side
   1,139,185.98x = 1,036,405,693,991.87
5. Step 5: Solve for x
   x = 1,036,405,693,991.87/1,139,185.98
6. Step 6: Final answer
   x = 909,777.43