Finding the Fourth Proportional to 2,105,427.64, 2,905,491.36 and 1,138,557.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,427.64 : 2,905,491.36 = 1,138,557.86 : x
2. Step 2: Convert to fraction form
   2,105,427.64/2,905,491.36 = 1,138,557.86/x
3. Step 3: Cross multiply
   2,105,427.64x = 2,905,491.36 × 1,138,557.86
4. Step 4: Simplify right side
   2,105,427.64x = 3,308,070,025,090.09
5. Step 5: Solve for x
   x = 3,308,070,025,090.09/2,105,427.64
6. Step 6: Final answer
   x = 1,571,210.50