Finding the Fourth Proportional to 1,513,673.42, 2,089,057.28 and 869,079.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513,673.42 : 2,089,057.28 = 869,079.77 : x
2. Step 2: Convert to fraction form
   1,513,673.42/2,089,057.28 = 869,079.77/x
3. Step 3: Cross multiply
   1,513,673.42x = 2,089,057.28 × 869,079.77
4. Step 4: Simplify right side
   1,513,673.42x = 1,815,557,405,628.54
5. Step 5: Solve for x
   x = 1,815,557,405,628.54/1,513,673.42
6. Step 6: Final answer
   x = 1,199,437.99