Finding the Fourth Proportional to 1,870,662.12, 2,806,045.47 and 608,489.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870,662.12 : 2,806,045.47 = 608,489.75 : x
2. Step 2: Convert to fraction form
   1,870,662.12/2,806,045.47 = 608,489.75/x
3. Step 3: Cross multiply
   1,870,662.12x = 2,806,045.47 × 608,489.75
4. Step 4: Simplify right side
   1,870,662.12x = 1,707,449,892,498.71
5. Step 5: Solve for x
   x = 1,707,449,892,498.71/1,870,662.12
6. Step 6: Final answer
   x = 912,751.63