Finding the Fourth Proportional to 1,510.51, 2,084.01 and 979.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.51 : 2,084.01 = 979.81 : x
2. Step 2: Convert to fraction form
   1,510.51/2,084.01 = 979.81/x
3. Step 3: Cross multiply
   1,510.51x = 2,084.01 × 979.81
4. Step 4: Simplify right side
   1,510.51x = 2,041,928.63
5. Step 5: Solve for x
   x = 2,041,928.63/1,510.51
6. Step 6: Final answer
   x = 1,351.82