Finding the Fourth Proportional to 3,111,880.06, 4,669,919.61 and 1,218,385.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111,880.06 : 4,669,919.61 = 1,218,385.18 : x
2. Step 2: Convert to fraction form
   3,111,880.06/4,669,919.61 = 1,218,385.18/x
3. Step 3: Cross multiply
   3,111,880.06x = 4,669,919.61 × 1,218,385.18
4. Step 4: Simplify right side
   3,111,880.06x = 5,689,760,844,615.38
5. Step 5: Solve for x
   x = 5,689,760,844,615.38/3,111,880.06
6. Step 6: Final answer
   x = 1,828,399.79