Finding the Fourth Proportional to 2,421,674.22, 3,342,054.06 and 1,389,174.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,421,674.22 : 3,342,054.06 = 1,389,174.42 : x
2. Step 2: Convert to fraction form
   2,421,674.22/3,342,054.06 = 1,389,174.42/x
3. Step 3: Cross multiply
   2,421,674.22x = 3,342,054.06 × 1,389,174.42
4. Step 4: Simplify right side
   2,421,674.22x = 4,642,696,010,409.15
5. Step 5: Solve for x
   x = 4,642,696,010,409.15/2,421,674.22
6. Step 6: Final answer
   x = 1,917,143.10