Finding the Fourth Proportional to 2,158,174.32, 2,978,265.96 and 1,178,109.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,174.32 : 2,978,265.96 = 1,178,109.36 : x
2. Step 2: Convert to fraction form
   2,158,174.32/2,978,265.96 = 1,178,109.36/x
3. Step 3: Cross multiply
   2,158,174.32x = 2,978,265.96 × 1,178,109.36
4. Step 4: Simplify right side
   2,158,174.32x = 3,508,723,004,045.39
5. Step 5: Solve for x
   x = 3,508,723,004,045.39/2,158,174.32
6. Step 6: Final answer
   x = 1,625,782.95