Finding the Fourth Proportional to 7,191.62, 10,788.18 and 1,997.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,191.62 : 10,788.18 = 1,997.50 : x
2. Step 2: Convert to fraction form
   7,191.62/10,788.18 = 1,997.50/x
3. Step 3: Cross multiply
   7,191.62x = 10,788.18 × 1,997.50
4. Step 4: Simplify right side
   7,191.62x = 21,549,389.55
5. Step 5: Solve for x
   x = 21,549,389.55/7,191.62
6. Step 6: Final answer
   x = 2,996.46