Finding the Fourth Proportional to 2,166,279.83, 2,989,559.58 and 1,199,410.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166,279.83 : 2,989,559.58 = 1,199,410.10 : x
2. Step 2: Convert to fraction form
   2,166,279.83/2,989,559.58 = 1,199,410.10/x
3. Step 3: Cross multiply
   2,166,279.83x = 2,989,559.58 × 1,199,410.10
4. Step 4: Simplify right side
   2,166,279.83x = 3,585,707,946,569.02
5. Step 5: Solve for x
   x = 3,585,707,946,569.02/2,166,279.83
6. Step 6: Final answer
   x = 1,655,237.66