Finding the Fourth Proportional to 2,158,215.06, 2,978,337.35 and 1,191,346.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,215.06 : 2,978,337.35 = 1,191,346.01 : x
2. Step 2: Convert to fraction form
   2,158,215.06/2,978,337.35 = 1,191,346.01/x
3. Step 3: Cross multiply
   2,158,215.06x = 2,978,337.35 × 1,191,346.01
4. Step 4: Simplify right side
   2,158,215.06x = 3,548,230,310,910.60
5. Step 5: Solve for x
   x = 3,548,230,310,910.60/2,158,215.06
6. Step 6: Final answer
   x = 1,644,057.80