Finding the Fourth Proportional to 2,105,530.66, 2,905,655.25 and 1,138,679.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,530.66 : 2,905,655.25 = 1,138,679.83 : x
2. Step 2: Convert to fraction form
   2,105,530.66/2,905,655.25 = 1,138,679.83/x
3. Step 3: Cross multiply
   2,105,530.66x = 2,905,655.25 × 1,138,679.83
4. Step 4: Simplify right side
   2,105,530.66x = 3,308,611,026,108.61
5. Step 5: Solve for x
   x = 3,308,611,026,108.61/2,105,530.66
6. Step 6: Final answer
   x = 1,571,390.57