Finding the Fourth Proportional to 1,128,805.82, 1,557,750.76 and 619,509.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,128,805.82 : 1,557,750.76 = 619,509.50 : x
2. Step 2: Convert to fraction form
   1,128,805.82/1,557,750.76 = 619,509.50/x
3. Step 3: Cross multiply
   1,128,805.82x = 1,557,750.76 × 619,509.50
4. Step 4: Simplify right side
   1,128,805.82x = 965,041,385,114.69
5. Step 5: Solve for x
   x = 965,041,385,114.69/1,128,805.82
6. Step 6: Final answer
   x = 854,922.41