Finding the Fourth Proportional to 2,491.59, 3,438.32 and 1,372.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,491.59 : 3,438.32 = 1,372.50 : x
2. Step 2: Convert to fraction form
   2,491.59/3,438.32 = 1,372.50/x
3. Step 3: Cross multiply
   2,491.59x = 3,438.32 × 1,372.50
4. Step 4: Simplify right side
   2,491.59x = 4,719,094.20
5. Step 5: Solve for x
   x = 4,719,094.20/2,491.59
6. Step 6: Final answer
   x = 1,894.01