Finding the Fourth Proportional to 2,078,785.10, 3,120,802.05 and 1,120,004.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078,785.10 : 3,120,802.05 = 1,120,004.30 : x
2. Step 2: Convert to fraction form
   2,078,785.10/3,120,802.05 = 1,120,004.30/x
3. Step 3: Cross multiply
   2,078,785.10x = 3,120,802.05 × 1,120,004.30
4. Step 4: Simplify right side
   2,078,785.10x = 3,495,311,715,448.82
5. Step 5: Solve for x
   x = 3,495,311,715,448.82/2,078,785.10
6. Step 6: Final answer
   x = 1,681,420.42