Finding the Fourth Proportional to 2,158,675.02, 2,978,976.06 and 1,191,807.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,675.02 : 2,978,976.06 = 1,191,807.18 : x
2. Step 2: Convert to fraction form
   2,158,675.02/2,978,976.06 = 1,191,807.18/x
3. Step 3: Cross multiply
   2,158,675.02x = 2,978,976.06 × 1,191,807.18
4. Step 4: Simplify right side
   2,158,675.02x = 3,550,365,057,356.11
5. Step 5: Solve for x
   x = 3,550,365,057,356.11/2,158,675.02
6. Step 6: Final answer
   x = 1,644,696.41