Finding the Fourth Proportional to 2,158,677.02, 2,978,978.82 and 1,191,809.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,677.02 : 2,978,978.82 = 1,191,809.18 : x
2. Step 2: Convert to fraction form
   2,158,677.02/2,978,978.82 = 1,191,809.18/x
3. Step 3: Cross multiply
   2,158,677.02x = 2,978,978.82 × 1,191,809.18
4. Step 4: Simplify right side
   2,158,677.02x = 3,550,374,304,701.57
5. Step 5: Solve for x
   x = 3,550,374,304,701.57/2,158,677.02
6. Step 6: Final answer
   x = 1,644,699.17