Finding the Fourth Proportional to 1,423,948, 2,134,434.82 and 855,328

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423,948 : 2,134,434.82 = 855,328 : x
2. Step 2: Convert to fraction form
   1,423,948/2,134,434.82 = 855,328/x
3. Step 3: Cross multiply
   1,423,948x = 2,134,434.82 × 855,328
4. Step 4: Simplify right side
   1,423,948x = 1,825,641,865,720.96
5. Step 5: Solve for x
   x = 1,825,641,865,720.96/1,423,948
6. Step 6: Final answer
   x = 1,282,098.69