Finding the Fourth Proportional to 1,369,105.38, 1,888,786.89 and 916,542.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369,105.38 : 1,888,786.89 = 916,542.18 : x
2. Step 2: Convert to fraction form
   1,369,105.38/1,888,786.89 = 916,542.18/x
3. Step 3: Cross multiply
   1,369,105.38x = 1,888,786.89 × 916,542.18
4. Step 4: Simplify right side
   1,369,105.38x = 1,731,152,853,716.02
5. Step 5: Solve for x
   x = 1,731,152,853,716.02/1,369,105.38
6. Step 6: Final answer
   x = 1,264,440.91