Finding the Fourth Proportional to 1,380,796.80, 2,071,399.32 and 707,259.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,380,796.80 : 2,071,399.32 = 707,259.12 : x
2. Step 2: Convert to fraction form
   1,380,796.80/2,071,399.32 = 707,259.12/x
3. Step 3: Cross multiply
   1,380,796.80x = 2,071,399.32 × 707,259.12
4. Step 4: Simplify right side
   1,380,796.80x = 1,465,016,060,231.80
5. Step 5: Solve for x
   x = 1,465,016,060,231.80/1,380,796.80
6. Step 6: Final answer
   x = 1,060,993.23