Finding the Fourth Proportional to 1,412,174.72, 2,117,071.59 and 612,854.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,412,174.72 : 2,117,071.59 = 612,854.18 : x
2. Step 2: Convert to fraction form
   1,412,174.72/2,117,071.59 = 612,854.18/x
3. Step 3: Cross multiply
   1,412,174.72x = 2,117,071.59 × 612,854.18
4. Step 4: Simplify right side
   1,412,174.72x = 1,297,456,173,290.75
5. Step 5: Solve for x
   x = 1,297,456,173,290.75/1,412,174.72
6. Step 6: Final answer
   x = 918,764.62