Finding the Fourth Proportional to 1,238,215.35, 1,729,958.55 and 1,238,215.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,215.35 : 1,729,958.55 = 1,238,215.35 : x
2. Step 2: Convert to fraction form
   1,238,215.35/1,729,958.55 = 1,238,215.35/x
3. Step 3: Cross multiply
   1,238,215.35x = 1,729,958.55 × 1,238,215.35
4. Step 4: Simplify right side
   1,238,215.35x = 2,142,061,231,473.74
5. Step 5: Solve for x
   x = 2,142,061,231,473.74/1,238,215.35
6. Step 6: Final answer
   x = 1,729,958.55