Finding the Fourth Proportional to 2,146,298.20, 2,961,829.72 and 1,215,919.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146,298.20 : 2,961,829.72 = 1,215,919.24 : x
2. Step 2: Convert to fraction form
   2,146,298.20/2,961,829.72 = 1,215,919.24/x
3. Step 3: Cross multiply
   2,146,298.20x = 2,961,829.72 × 1,215,919.24
4. Step 4: Simplify right side
   2,146,298.20x = 3,601,345,742,151.81
5. Step 5: Solve for x
   x = 3,601,345,742,151.81/2,146,298.20
6. Step 6: Final answer
   x = 1,677,933.54