Finding the Fourth Proportional to 2,158,427.11, 2,978,591.61 and 1,191,532.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,427.11 : 2,978,591.61 = 1,191,532.54 : x
2. Step 2: Convert to fraction form
   2,158,427.11/2,978,591.61 = 1,191,532.54/x
3. Step 3: Cross multiply
   2,158,427.11x = 2,978,591.61 × 1,191,532.54
4. Step 4: Simplify right side
   2,158,427.11x = 3,549,088,826,685.99
5. Step 5: Solve for x
   x = 3,549,088,826,685.99/2,158,427.11
6. Step 6: Final answer
   x = 1,644,294.04