Finding the Fourth Proportional to 1,929,789.93, 2,891,031.18 and 1,288,158.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,929,789.93 : 2,891,031.18 = 1,288,158.96 : x
2. Step 2: Convert to fraction form
   1,929,789.93/2,891,031.18 = 1,288,158.96/x
3. Step 3: Cross multiply
   1,929,789.93x = 2,891,031.18 × 1,288,158.96
4. Step 4: Simplify right side
   1,929,789.93x = 3,724,107,718,156.37
5. Step 5: Solve for x
   x = 3,724,107,718,156.37/1,929,789.93
6. Step 6: Final answer
   x = 1,929,799.54