Finding the Fourth Proportional to 1,108,719.30, 1,659,968.55 and 1,077,615.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,108,719.30 : 1,659,968.55 = 1,077,615.30 : x
2. Step 2: Convert to fraction form
   1,108,719.30/1,659,968.55 = 1,077,615.30/x
3. Step 3: Cross multiply
   1,108,719.30x = 1,659,968.55 × 1,077,615.30
4. Step 4: Simplify right side
   1,108,719.30x = 1,788,807,506,998.82
5. Step 5: Solve for x
   x = 1,788,807,506,998.82/1,108,719.30
6. Step 6: Final answer
   x = 1,613,399.81