Finding the Fourth Proportional to 1,591,318.48, 2,196,066.18 and 866,213.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,591,318.48 : 2,196,066.18 = 866,213.50 : x
2. Step 2: Convert to fraction form
   1,591,318.48/2,196,066.18 = 866,213.50/x
3. Step 3: Cross multiply
   1,591,318.48x = 2,196,066.18 × 866,213.50
4. Step 4: Simplify right side
   1,591,318.48x = 1,902,262,172,009.43
5. Step 5: Solve for x
   x = 1,902,262,172,009.43/1,591,318.48
6. Step 6: Final answer
   x = 1,195,400.04