Finding the Fourth Proportional to 745,870.05, 1,118,915.33 and 272,444.69

Step by Step Solution

1. Step 1: Write the proportion equation
   745,870.05 : 1,118,915.33 = 272,444.69 : x
2. Step 2: Convert to fraction form
   745,870.05/1,118,915.33 = 272,444.69/x
3. Step 3: Cross multiply
   745,870.05x = 1,118,915.33 × 272,444.69
4. Step 4: Simplify right side
   745,870.05x = 304,842,540,218.10
5. Step 5: Solve for x
   x = 304,842,540,218.10/745,870.05
6. Step 6: Final answer
   x = 408,707.31