Finding the Fourth Proportional to 1,870.44, 2,580.18 and 1,520.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.44 : 2,580.18 = 1,520.52 : x
2. Step 2: Convert to fraction form
   1,870.44/2,580.18 = 1,520.52/x
3. Step 3: Cross multiply
   1,870.44x = 2,580.18 × 1,520.52
4. Step 4: Simplify right side
   1,870.44x = 3,923,215.29
5. Step 5: Solve for x
   x = 3,923,215.29/1,870.44
6. Step 6: Final answer
   x = 2,097.48