Finding the Fourth Proportional to 2,591.84, 3,888.15 and 925.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.84 : 3,888.15 = 925.83 : x
2. Step 2: Convert to fraction form
   2,591.84/3,888.15 = 925.83/x
3. Step 3: Cross multiply
   2,591.84x = 3,888.15 × 925.83
4. Step 4: Simplify right side
   2,591.84x = 3,599,777.02
5. Step 5: Solve for x
   x = 3,599,777.02/2,591.84
6. Step 6: Final answer
   x = 1,388.89