Finding the Fourth Proportional to 1,898.82, 2,619.65 and 1,152.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,898.82 : 2,619.65 = 1,152.50 : x
2. Step 2: Convert to fraction form
   1,898.82/2,619.65 = 1,152.50/x
3. Step 3: Cross multiply
   1,898.82x = 2,619.65 × 1,152.50
4. Step 4: Simplify right side
   1,898.82x = 3,019,136.41
5. Step 5: Solve for x
   x = 3,019,136.41/1,898.82
6. Step 6: Final answer
   x = 1,590.01