Finding the Fourth Proportional to 2,143,272.15, 2,957,705.18 and 1,176,418.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,272.15 : 2,957,705.18 = 1,176,418.89 : x
2. Step 2: Convert to fraction form
   2,143,272.15/2,957,705.18 = 1,176,418.89/x
3. Step 3: Cross multiply
   2,143,272.15x = 2,957,705.18 × 1,176,418.89
4. Step 4: Simplify right side
   2,143,272.15x = 3,479,500,243,332.33
5. Step 5: Solve for x
   x = 3,479,500,243,332.33/2,143,272.15
6. Step 6: Final answer
   x = 1,623,452.37