Finding the Fourth Proportional to 1,776,068.52, 2,663,441.40 and 638,520.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,776,068.52 : 2,663,441.40 = 638,520.31 : x
2. Step 2: Convert to fraction form
   1,776,068.52/2,663,441.40 = 638,520.31/x
3. Step 3: Cross multiply
   1,776,068.52x = 2,663,441.40 × 638,520.31
4. Step 4: Simplify right side
   1,776,068.52x = 1,700,661,428,394.83
5. Step 5: Solve for x
   x = 1,700,661,428,394.83/1,776,068.52
6. Step 6: Final answer
   x = 957,542.69