Finding the Fourth Proportional to 1,870.56, 2,802.06 and 1,717.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.56 : 2,802.06 = 1,717.47 : x
2. Step 2: Convert to fraction form
   1,870.56/2,802.06 = 1,717.47/x
3. Step 3: Cross multiply
   1,870.56x = 2,802.06 × 1,717.47
4. Step 4: Simplify right side
   1,870.56x = 4,812,453.99
5. Step 5: Solve for x
   x = 4,812,453.99/1,870.56
6. Step 6: Final answer
   x = 2,572.73