Finding the Fourth Proportional to 2,172,845.76, 2,998,667.28 and 1,205,976.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,172,845.76 : 2,998,667.28 = 1,205,976.12 : x
2. Step 2: Convert to fraction form
   2,172,845.76/2,998,667.28 = 1,205,976.12/x
3. Step 3: Cross multiply
   2,172,845.76x = 2,998,667.28 × 1,205,976.12
4. Step 4: Simplify right side
   2,172,845.76x = 3,616,321,131,505.35
5. Step 5: Solve for x
   x = 3,616,321,131,505.35/2,172,845.76
6. Step 6: Final answer
   x = 1,664,324.82