Finding the Fourth Proportional to 1,385,698.73, 1,912,425.58 and 1,152,714.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385,698.73 : 1,912,425.58 = 1,152,714.10 : x
2. Step 2: Convert to fraction form
   1,385,698.73/1,912,425.58 = 1,152,714.10/x
3. Step 3: Cross multiply
   1,385,698.73x = 1,912,425.58 × 1,152,714.10
4. Step 4: Simplify right side
   1,385,698.73x = 2,204,479,919,649.59
5. Step 5: Solve for x
   x = 2,204,479,919,649.59/1,385,698.73
6. Step 6: Final answer
   x = 1,590,879.66