Finding the Fourth Proportional to 2,156,120.38, 2,975,460.15 and 1,189,276.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156,120.38 : 2,975,460.15 = 1,189,276.78 : x
2. Step 2: Convert to fraction form
   2,156,120.38/2,975,460.15 = 1,189,276.78/x
3. Step 3: Cross multiply
   2,156,120.38x = 2,975,460.15 × 1,189,276.78
4. Step 4: Simplify right side
   2,156,120.38x = 3,538,645,666,210.32
5. Step 5: Solve for x
   x = 3,538,645,666,210.32/2,156,120.38
6. Step 6: Final answer
   x = 1,641,209.69