Finding the Fourth Proportional to 1,279,776.84, 1,766,055.72 and 706,804.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279,776.84 : 1,766,055.72 = 706,804.71 : x
2. Step 2: Convert to fraction form
   1,279,776.84/1,766,055.72 = 706,804.71/x
3. Step 3: Cross multiply
   1,279,776.84x = 1,766,055.72 × 706,804.71
4. Step 4: Simplify right side
   1,279,776.84x = 1,248,256,501,018.44
5. Step 5: Solve for x
   x = 1,248,256,501,018.44/1,279,776.84
6. Step 6: Final answer
   x = 975,370.44