Finding the Fourth Proportional to 3,470.07, 4,788.72 and 1,898.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,470.07 : 4,788.72 = 1,898.18 : x
2. Step 2: Convert to fraction form
   3,470.07/4,788.72 = 1,898.18/x
3. Step 3: Cross multiply
   3,470.07x = 4,788.72 × 1,898.18
4. Step 4: Simplify right side
   3,470.07x = 9,089,828.59
5. Step 5: Solve for x
   x = 9,089,828.59/3,470.07
6. Step 6: Final answer
   x = 2,619.49