Finding the Fourth Proportional to 2,158,263.88, 2,978,404.72 and 1,191,394.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,263.88 : 2,978,404.72 = 1,191,394.84 : x
2. Step 2: Convert to fraction form
   2,158,263.88/2,978,404.72 = 1,191,394.84/x
3. Step 3: Cross multiply
   2,158,263.88x = 2,978,404.72 × 1,191,394.84
4. Step 4: Simplify right side
   2,158,263.88x = 3,548,456,014,839.65
5. Step 5: Solve for x
   x = 3,548,456,014,839.65/2,158,263.88
6. Step 6: Final answer
   x = 1,644,125.19