Finding the Fourth Proportional to 2,141,778.96, 2,955,627.36 and 1,223,997.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141,778.96 : 2,955,627.36 = 1,223,997.57 : x
2. Step 2: Convert to fraction form
   2,141,778.96/2,955,627.36 = 1,223,997.57/x
3. Step 3: Cross multiply
   2,141,778.96x = 2,955,627.36 × 1,223,997.57
4. Step 4: Simplify right side
   2,141,778.96x = 3,617,680,706,465.52
5. Step 5: Solve for x
   x = 3,617,680,706,465.52/2,141,778.96
6. Step 6: Final answer
   x = 1,689,100.87