Finding the Fourth Proportional to 1,692,810.38, 2,540,321.50 and 806,415.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,692,810.38 : 2,540,321.50 = 806,415.50 : x
2. Step 2: Convert to fraction form
   1,692,810.38/2,540,321.50 = 806,415.50/x
3. Step 3: Cross multiply
   1,692,810.38x = 2,540,321.50 × 806,415.50
4. Step 4: Simplify right side
   1,692,810.38x = 2,048,554,632,583.25
5. Step 5: Solve for x
   x = 2,048,554,632,583.25/1,692,810.38
6. Step 6: Final answer
   x = 1,210,150.09