Finding the Fourth Proportional to 1,510.35, 2,263.05 and 1,200.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.35 : 2,263.05 = 1,200.57 : x
2. Step 2: Convert to fraction form
   1,510.35/2,263.05 = 1,200.57/x
3. Step 3: Cross multiply
   1,510.35x = 2,263.05 × 1,200.57
4. Step 4: Simplify right side
   1,510.35x = 2,716,949.94
5. Step 5: Solve for x
   x = 2,716,949.94/1,510.35
6. Step 6: Final answer
   x = 1,798.89