Finding the Fourth Proportional to 2,105,531.66, 2,905,656.63 and 1,138,680.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,531.66 : 2,905,656.63 = 1,138,680.83 : x
2. Step 2: Convert to fraction form
   2,105,531.66/2,905,656.63 = 1,138,680.83/x
3. Step 3: Cross multiply
   2,105,531.66x = 2,905,656.63 × 1,138,680.83
4. Step 4: Simplify right side
   2,105,531.66x = 3,308,615,503,143.40
5. Step 5: Solve for x
   x = 3,308,615,503,143.40/2,105,531.66
6. Step 6: Final answer
   x = 1,571,391.95