Finding the Fourth Proportional to 3,787.56, 5,680.71 and 1,189.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,787.56 : 5,680.71 = 1,189.89 : x
2. Step 2: Convert to fraction form
   3,787.56/5,680.71 = 1,189.89/x
3. Step 3: Cross multiply
   3,787.56x = 5,680.71 × 1,189.89
4. Step 4: Simplify right side
   3,787.56x = 6,759,420.02
5. Step 5: Solve for x
   x = 6,759,420.02/3,787.56
6. Step 6: Final answer
   x = 1,784.64