Finding the Fourth Proportional to 2,116,186.54, 3,173,467.54 and 900,992.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,186.54 : 3,173,467.54 = 900,992.72 : x
2. Step 2: Convert to fraction form
   2,116,186.54/3,173,467.54 = 900,992.72/x
3. Step 3: Cross multiply
   2,116,186.54x = 3,173,467.54 × 900,992.72
4. Step 4: Simplify right side
   2,116,186.54x = 2,859,271,150,696.31
5. Step 5: Solve for x
   x = 2,859,271,150,696.31/2,116,186.54
6. Step 6: Final answer
   x = 1,351,143.25