Finding the Fourth Proportional to 2,115,580.15, 2,919,500.60 and 1,210,162.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,115,580.15 : 2,919,500.60 = 1,210,162.15 : x
2. Step 2: Convert to fraction form
   2,115,580.15/2,919,500.60 = 1,210,162.15/x
3. Step 3: Cross multiply
   2,115,580.15x = 2,919,500.60 × 1,210,162.15
4. Step 4: Simplify right side
   2,115,580.15x = 3,533,069,123,022.29
5. Step 5: Solve for x
   x = 3,533,069,123,022.29/2,115,580.15
6. Step 6: Final answer
   x = 1,670,023.76