Finding the Fourth Proportional to 2,159,727.64, 2,980,406.42 and 1,179,667.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,159,727.64 : 2,980,406.42 = 1,179,667.29 : x
2. Step 2: Convert to fraction form
   2,159,727.64/2,980,406.42 = 1,179,667.29/x
3. Step 3: Cross multiply
   2,159,727.64x = 2,980,406.42 × 1,179,667.29
4. Step 4: Simplify right side
   2,159,727.64x = 3,515,887,963,105.42
5. Step 5: Solve for x
   x = 3,515,887,963,105.42/2,159,727.64
6. Step 6: Final answer
   x = 1,627,931.18