Finding the Fourth Proportional to 1,355,892.15, 1,870,667.71 and 774,698.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355,892.15 : 1,870,667.71 = 774,698.26 : x
2. Step 2: Convert to fraction form
   1,355,892.15/1,870,667.71 = 774,698.26/x
3. Step 3: Cross multiply
   1,355,892.15x = 1,870,667.71 × 774,698.26
4. Step 4: Simplify right side
   1,355,892.15x = 1,449,203,016,101.69
5. Step 5: Solve for x
   x = 1,449,203,016,101.69/1,355,892.15
6. Step 6: Final answer
   x = 1,068,818.80