Finding the Fourth Proportional to 1,223,365.03, 1,688,857.37 and 764,734.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223,365.03 : 1,688,857.37 = 764,734.72 : x
2. Step 2: Convert to fraction form
   1,223,365.03/1,688,857.37 = 764,734.72/x
3. Step 3: Cross multiply
   1,223,365.03x = 1,688,857.37 × 764,734.72
4. Step 4: Simplify right side
   1,223,365.03x = 1,291,527,867,966.89
5. Step 5: Solve for x
   x = 1,291,527,867,966.89/1,223,365.03
6. Step 6: Final answer
   x = 1,055,717.50