Finding the Fourth Proportional to 1,355,297.98, 1,870,293.76 and 774,514.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355,297.98 : 1,870,293.76 = 774,514.45 : x
2. Step 2: Convert to fraction form
   1,355,297.98/1,870,293.76 = 774,514.45/x
3. Step 3: Cross multiply
   1,355,297.98x = 1,870,293.76 × 774,514.45
4. Step 4: Simplify right side
   1,355,297.98x = 1,448,569,548,932.23
5. Step 5: Solve for x
   x = 1,448,569,548,932.23/1,355,297.98
6. Step 6: Final answer
   x = 1,068,819.98