Finding the Fourth Proportional to 1,337.50, 1,994.70 and 1,245.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.50 : 1,994.70 = 1,245.16 : x
2. Step 2: Convert to fraction form
   1,337.50/1,994.70 = 1,245.16/x
3. Step 3: Cross multiply
   1,337.50x = 1,994.70 × 1,245.16
4. Step 4: Simplify right side
   1,337.50x = 2,483,720.65
5. Step 5: Solve for x
   x = 2,483,720.65/1,337.50
6. Step 6: Final answer
   x = 1,856.99