Finding the Fourth Proportional to 2,158,683.44, 2,978,923.76 and 1,191,796.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,683.44 : 2,978,923.76 = 1,191,796.16 : x
2. Step 2: Convert to fraction form
   2,158,683.44/2,978,923.76 = 1,191,796.16/x
3. Step 3: Cross multiply
   2,158,683.44x = 2,978,923.76 × 1,191,796.16
4. Step 4: Simplify right side
   2,158,683.44x = 3,550,269,898,100.76
5. Step 5: Solve for x
   x = 3,550,269,898,100.76/2,158,683.44
6. Step 6: Final answer
   x = 1,644,645.91