Finding the Fourth Proportional to 1,801,300, 2,485,803.72 and 985,513.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,801,300 : 2,485,803.72 = 985,513.36 : x
2. Step 2: Convert to fraction form
   1,801,300/2,485,803.72 = 985,513.36/x
3. Step 3: Cross multiply
   1,801,300x = 2,485,803.72 × 985,513.36
4. Step 4: Simplify right side
   1,801,300x = 2,449,792,776,397.70
5. Step 5: Solve for x
   x = 2,449,792,776,397.70/1,801,300
6. Step 6: Final answer
   x = 1,360,013.75