Finding the Fourth Proportional to 1,510.74, 2,081.70 and 1,214.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.74 : 2,081.70 = 1,214.82 : x
2. Step 2: Convert to fraction form
   1,510.74/2,081.70 = 1,214.82/x
3. Step 3: Cross multiply
   1,510.74x = 2,081.70 × 1,214.82
4. Step 4: Simplify right side
   1,510.74x = 2,528,890.79
5. Step 5: Solve for x
   x = 2,528,890.79/1,510.74
6. Step 6: Final answer
   x = 1,673.94