Finding the Fourth Proportional to 2,920,268.07, 4,379,662.71 and 870,455.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,920,268.07 : 4,379,662.71 = 870,455.61 : x
2. Step 2: Convert to fraction form
   2,920,268.07/4,379,662.71 = 870,455.61/x
3. Step 3: Cross multiply
   2,920,268.07x = 4,379,662.71 × 870,455.61
4. Step 4: Simplify right side
   2,920,268.07x = 3,812,301,975,827.30
5. Step 5: Solve for x
   x = 3,812,301,975,827.30/2,920,268.07
6. Step 6: Final answer
   x = 1,305,463.02