Finding the Fourth Proportional to 1,591,284.15, 2,196,018.50 and 866,178.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,591,284.15 : 2,196,018.50 = 866,178.63 : x
2. Step 2: Convert to fraction form
   1,591,284.15/2,196,018.50 = 866,178.63/x
3. Step 3: Cross multiply
   1,591,284.15x = 2,196,018.50 × 866,178.63
4. Step 4: Simplify right side
   1,591,284.15x = 1,902,144,291,453.76
5. Step 5: Solve for x
   x = 1,902,144,291,453.76/1,591,284.15
6. Step 6: Final answer
   x = 1,195,351.75