Finding the Fourth Proportional to 2,726,804.90, 4,089,764.34 and 1,287,485.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,726,804.90 : 4,089,764.34 = 1,287,485.53 : x
2. Step 2: Convert to fraction form
   2,726,804.90/4,089,764.34 = 1,287,485.53/x
3. Step 3: Cross multiply
   2,726,804.90x = 4,089,764.34 × 1,287,485.53
4. Step 4: Simplify right side
   2,726,804.90x = 5,265,512,398,635.59
5. Step 5: Solve for x
   x = 5,265,512,398,635.59/2,726,804.90
6. Step 6: Final answer
   x = 1,931,019.12