Finding the Fourth Proportional to 2,143,241.60, 3,215,422.59 and 1,243,818.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,241.60 : 3,215,422.59 = 1,243,818.71 : x
2. Step 2: Convert to fraction form
   2,143,241.60/3,215,422.59 = 1,243,818.71/x
3. Step 3: Cross multiply
   2,143,241.60x = 3,215,422.59 × 1,243,818.71
4. Step 4: Simplify right side
   2,143,241.60x = 3,999,402,769,315.06
5. Step 5: Solve for x
   x = 3,999,402,769,315.06/2,143,241.60
6. Step 6: Final answer
   x = 1,866,053.17