Finding the Fourth Proportional to 1,385,945.86, 1,912,628.73 and 774,152.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385,945.86 : 1,912,628.73 = 774,152.26 : x
2. Step 2: Convert to fraction form
   1,385,945.86/1,912,628.73 = 774,152.26/x
3. Step 3: Cross multiply
   1,385,945.86x = 1,912,628.73 × 774,152.26
4. Step 4: Simplify right side
   1,385,945.86x = 1,480,665,853,870.43
5. Step 5: Solve for x
   x = 1,480,665,853,870.43/1,385,945.86
6. Step 6: Final answer
   x = 1,068,343.21