Finding the Fourth Proportional to 1,132,067.60, 1,562,196.80 and 622,756.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,132,067.60 : 1,562,196.80 = 622,756.88 : x
2. Step 2: Convert to fraction form
   1,132,067.60/1,562,196.80 = 622,756.88/x
3. Step 3: Cross multiply
   1,132,067.60x = 1,562,196.80 × 622,756.88
4. Step 4: Simplify right side
   1,132,067.60x = 972,868,805,113.98
5. Step 5: Solve for x
   x = 972,868,805,113.98/1,132,067.60
6. Step 6: Final answer
   x = 859,373.42