Finding the Fourth Proportional to 2,175,210.86, 3,001,789.42 and 1,208,431.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175,210.86 : 3,001,789.42 = 1,208,431.58 : x
2. Step 2: Convert to fraction form
   2,175,210.86/3,001,789.42 = 1,208,431.58/x
3. Step 3: Cross multiply
   2,175,210.86x = 3,001,789.42 × 1,208,431.58
4. Step 4: Simplify right side
   2,175,210.86x = 3,627,457,113,607.86
5. Step 5: Solve for x
   x = 3,627,457,113,607.86/2,175,210.86
6. Step 6: Final answer
   x = 1,667,634.71