Finding the Fourth Proportional to 1,156,064.51, 1,595,357.27 and 639,819.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156,064.51 : 1,595,357.27 = 639,819.41 : x
2. Step 2: Convert to fraction form
   1,156,064.51/1,595,357.27 = 639,819.41/x
3. Step 3: Cross multiply
   1,156,064.51x = 1,595,357.27 × 639,819.41
4. Step 4: Simplify right side
   1,156,064.51x = 1,020,740,547,230.61
5. Step 5: Solve for x
   x = 1,020,740,547,230.61/1,156,064.51
6. Step 6: Final answer
   x = 882,944.28