Finding the Fourth Proportional to 1,427,798.38, 1,970,088.81 and 816,144.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427,798.38 : 1,970,088.81 = 816,144.94 : x
2. Step 2: Convert to fraction form
   1,427,798.38/1,970,088.81 = 816,144.94/x
3. Step 3: Cross multiply
   1,427,798.38x = 1,970,088.81 × 816,144.94
4. Step 4: Simplify right side
   1,427,798.38x = 1,607,878,013,632.12
5. Step 5: Solve for x
   x = 1,607,878,013,632.12/1,427,798.38
6. Step 6: Final answer
   x = 1,126,123.99