Finding the Fourth Proportional to 1,612,796.18, 2,420,688.72 and 814,637.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,612,796.18 : 2,420,688.72 = 814,637.17 : x
2. Step 2: Convert to fraction form
   1,612,796.18/2,420,688.72 = 814,637.17/x
3. Step 3: Cross multiply
   1,612,796.18x = 2,420,688.72 × 814,637.17
4. Step 4: Simplify right side
   1,612,796.18x = 1,971,983,008,311.72
5. Step 5: Solve for x
   x = 1,971,983,008,311.72/1,612,796.18
6. Step 6: Final answer
   x = 1,222,710.61