Finding the Fourth Proportional to 655,570.18, 904,703.88 and 369,100.72

Step by Step Solution

1. Step 1: Write the proportion equation
   655,570.18 : 904,703.88 = 369,100.72 : x
2. Step 2: Convert to fraction form
   655,570.18/904,703.88 = 369,100.72/x
3. Step 3: Cross multiply
   655,570.18x = 904,703.88 × 369,100.72
4. Step 4: Simplify right side
   655,570.18x = 333,926,853,494.79
5. Step 5: Solve for x
   x = 333,926,853,494.79/655,570.18
6. Step 6: Final answer
   x = 509,368.58