Finding the Fourth Proportional to 2,105,562.31, 2,905,684.73 and 1,138,692.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,562.31 : 2,905,684.73 = 1,138,692.61 : x
2. Step 2: Convert to fraction form
   2,105,562.31/2,905,684.73 = 1,138,692.61/x
3. Step 3: Cross multiply
   2,105,562.31x = 2,905,684.73 × 1,138,692.61
4. Step 4: Simplify right side
   2,105,562.31x = 3,308,681,719,874.77
5. Step 5: Solve for x
   x = 3,308,681,719,874.77/2,105,562.31
6. Step 6: Final answer
   x = 1,571,400.53