Finding the Fourth Proportional to 1,888,311.72, 2,833,648.56 and 766,380.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,888,311.72 : 2,833,648.56 = 766,380.72 : x
2. Step 2: Convert to fraction form
   1,888,311.72/2,833,648.56 = 766,380.72/x
3. Step 3: Cross multiply
   1,888,311.72x = 2,833,648.56 × 766,380.72
4. Step 4: Simplify right side
   1,888,311.72x = 2,171,653,623,639.76
5. Step 5: Solve for x
   x = 2,171,653,623,639.76/1,888,311.72
6. Step 6: Final answer
   x = 1,150,050.39