Finding the Fourth Proportional to 2,900,714.88, 4,002,991.20 and 1,611,556.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,900,714.88 : 4,002,991.20 = 1,611,556.72 : x
2. Step 2: Convert to fraction form
   2,900,714.88/4,002,991.20 = 1,611,556.72/x
3. Step 3: Cross multiply
   2,900,714.88x = 4,002,991.20 × 1,611,556.72
4. Step 4: Simplify right side
   2,900,714.88x = 6,451,047,368,460.86
5. Step 5: Solve for x
   x = 6,451,047,368,460.86/2,900,714.88
6. Step 6: Final answer
   x = 2,223,950.87