Finding the Fourth Proportional to 2,131,164.38, 3,194,513.78 and 992,988.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131,164.38 : 3,194,513.78 = 992,988.06 : x
2. Step 2: Convert to fraction form
   2,131,164.38/3,194,513.78 = 992,988.06/x
3. Step 3: Cross multiply
   2,131,164.38x = 3,194,513.78 × 992,988.06
4. Step 4: Simplify right side
   2,131,164.38x = 3,172,114,041,045.47
5. Step 5: Solve for x
   x = 3,172,114,041,045.47/2,131,164.38
6. Step 6: Final answer
   x = 1,488,441.75