Finding the Fourth Proportional to 1,010,387.16, 1,515,643.61 and 336,528.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010,387.16 : 1,515,643.61 = 336,528.72 : x
2. Step 2: Convert to fraction form
   1,010,387.16/1,515,643.61 = 336,528.72/x
3. Step 3: Cross multiply
   1,010,387.16x = 1,515,643.61 × 336,528.72
4. Step 4: Simplify right side
   1,010,387.16x = 510,057,604,890.80
5. Step 5: Solve for x
   x = 510,057,604,890.80/1,010,387.16
6. Step 6: Final answer
   x = 504,814.02