Finding the Fourth Proportional to 870,111.62, 1,304,854.76 and 301,339.55

Step by Step Solution

1. Step 1: Write the proportion equation
   870,111.62 : 1,304,854.76 = 301,339.55 : x
2. Step 2: Convert to fraction form
   870,111.62/1,304,854.76 = 301,339.55/x
3. Step 3: Cross multiply
   870,111.62x = 1,304,854.76 × 301,339.55
4. Step 4: Simplify right side
   870,111.62x = 393,204,349,925.39
5. Step 5: Solve for x
   x = 393,204,349,925.39/870,111.62
6. Step 6: Final answer
   x = 451,901.05