Finding the Fourth Proportional to 1,428,819.25, 1,971,699.15 and 848,067.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,428,819.25 : 1,971,699.15 = 848,067.61 : x
2. Step 2: Convert to fraction form
   1,428,819.25/1,971,699.15 = 848,067.61/x
3. Step 3: Cross multiply
   1,428,819.25x = 1,971,699.15 × 848,067.61
4. Step 4: Simplify right side
   1,428,819.25x = 1,672,134,185,779.53
5. Step 5: Solve for x
   x = 1,672,134,185,779.53/1,428,819.25
6. Step 6: Final answer
   x = 1,170,290.91