Finding the Fourth Proportional to 2,158,045.99, 2,978,103.64 and 1,191,176.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,045.99 : 2,978,103.64 = 1,191,176.53 : x
2. Step 2: Convert to fraction form
   2,158,045.99/2,978,103.64 = 1,191,176.53/x
3. Step 3: Cross multiply
   2,158,045.99x = 2,978,103.64 × 1,191,176.53
4. Step 4: Simplify right side
   2,158,045.99x = 3,547,447,149,452.37
5. Step 5: Solve for x
   x = 3,547,447,149,452.37/2,158,045.99
6. Step 6: Final answer
   x = 1,643,823.70