Finding the Fourth Proportional to 1,507,116.65, 2,079,700.31 and 862,389.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507,116.65 : 2,079,700.31 = 862,389.05 : x
2. Step 2: Convert to fraction form
   1,507,116.65/2,079,700.31 = 862,389.05/x
3. Step 3: Cross multiply
   1,507,116.65x = 2,079,700.31 × 862,389.05
4. Step 4: Simplify right side
   1,507,116.65x = 1,793,510,766,383.08
5. Step 5: Solve for x
   x = 1,793,510,766,383.08/1,507,116.65
6. Step 6: Final answer
   x = 1,190,027.84