Finding the Fourth Proportional to 2,158,452.58, 2,978,688.69 and 1,191,583.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,452.58 : 2,978,688.69 = 1,191,583.38 : x
2. Step 2: Convert to fraction form
   2,158,452.58/2,978,688.69 = 1,191,583.38/x
3. Step 3: Cross multiply
   2,158,452.58x = 2,978,688.69 × 1,191,583.38
4. Step 4: Simplify right side
   2,158,452.58x = 3,549,355,937,197.97
5. Step 5: Solve for x
   x = 3,549,355,937,197.97/2,158,452.58
6. Step 6: Final answer
   x = 1,644,398.39