Finding the Fourth Proportional to 2,522.84, 3,787.98 and 1,981.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.84 : 3,787.98 = 1,981.64 : x
2. Step 2: Convert to fraction form
   2,522.84/3,787.98 = 1,981.64/x
3. Step 3: Cross multiply
   2,522.84x = 3,787.98 × 1,981.64
4. Step 4: Simplify right side
   2,522.84x = 7,506,412.69
5. Step 5: Solve for x
   x = 7,506,412.69/2,522.84
6. Step 6: Final answer
   x = 2,975.38