Finding the Fourth Proportional to 1,384,540.63, 1,910,661.98 and 772,686.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384,540.63 : 1,910,661.98 = 772,686.88 : x
2. Step 2: Convert to fraction form
   1,384,540.63/1,910,661.98 = 772,686.88/x
3. Step 3: Cross multiply
   1,384,540.63x = 1,910,661.98 × 772,686.88
4. Step 4: Simplify right side
   1,384,540.63x = 1,476,343,445,483.29
5. Step 5: Solve for x
   x = 1,476,343,445,483.29/1,384,540.63
6. Step 6: Final answer
   x = 1,066,305.61