Finding the Fourth Proportional to 999,900.72, 1,499,860.80 and 251,946.72

Step by Step Solution

1. Step 1: Write the proportion equation
   999,900.72 : 1,499,860.80 = 251,946.72 : x
2. Step 2: Convert to fraction form
   999,900.72/1,499,860.80 = 251,946.72/x
3. Step 3: Cross multiply
   999,900.72x = 1,499,860.80 × 251,946.72
4. Step 4: Simplify right side
   999,900.72x = 377,885,009,016.58
5. Step 5: Solve for x
   x = 377,885,009,016.58/999,900.72
6. Step 6: Final answer
   x = 377,922.53