Finding the Fourth Proportional to 1,878.24, 2,586.60 and 1,506.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,878.24 : 2,586.60 = 1,506.72 : x
2. Step 2: Convert to fraction form
   1,878.24/2,586.60 = 1,506.72/x
3. Step 3: Cross multiply
   1,878.24x = 2,586.60 × 1,506.72
4. Step 4: Simplify right side
   1,878.24x = 3,897,281.95
5. Step 5: Solve for x
   x = 3,897,281.95/1,878.24
6. Step 6: Final answer
   x = 2,074.96