Finding the Fourth Proportional to 1,110,014.10, 1,665,021.15 and 830,078.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,110,014.10 : 1,665,021.15 = 830,078.10 : x
2. Step 2: Convert to fraction form
   1,110,014.10/1,665,021.15 = 830,078.10/x
3. Step 3: Cross multiply
   1,110,014.10x = 1,665,021.15 × 830,078.10
4. Step 4: Simplify right side
   1,110,014.10x = 1,382,097,592,651.82
5. Step 5: Solve for x
   x = 1,382,097,592,651.82/1,110,014.10
6. Step 6: Final answer
   x = 1,245,117.15