Finding the Fourth Proportional to 766,495.67, 1,149,921.39 and 261,061.03

Step by Step Solution

1. Step 1: Write the proportion equation
   766,495.67 : 1,149,921.39 = 261,061.03 : x
2. Step 2: Convert to fraction form
   766,495.67/1,149,921.39 = 261,061.03/x
3. Step 3: Cross multiply
   766,495.67x = 1,149,921.39 × 261,061.03
4. Step 4: Simplify right side
   766,495.67x = 300,199,662,492.43
5. Step 5: Solve for x
   x = 300,199,662,492.43/766,495.67
6. Step 6: Final answer
   x = 391,652.13