Finding the Fourth Proportional to 2,156,438.34, 2,975,876.55 and 1,189,628.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156,438.34 : 2,975,876.55 = 1,189,628.82 : x
2. Step 2: Convert to fraction form
   2,156,438.34/2,975,876.55 = 1,189,628.82/x
3. Step 3: Cross multiply
   2,156,438.34x = 2,975,876.55 × 1,189,628.82
4. Step 4: Simplify right side
   2,156,438.34x = 3,540,188,508,642.17
5. Step 5: Solve for x
   x = 3,540,188,508,642.17/2,156,438.34
6. Step 6: Final answer
   x = 1,641,683.16