Finding the Fourth Proportional to 1,405,436.06, 2,108,993.72 and 1,291,092.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405,436.06 : 2,108,993.72 = 1,291,092.18 : x
2. Step 2: Convert to fraction form
   1,405,436.06/2,108,993.72 = 1,291,092.18/x
3. Step 3: Cross multiply
   1,405,436.06x = 2,108,993.72 × 1,291,092.18
4. Step 4: Simplify right side
   1,405,436.06x = 2,722,905,285,196.92
5. Step 5: Solve for x
   x = 2,722,905,285,196.92/1,405,436.06
6. Step 6: Final answer
   x = 1,937,409.58