Finding the Fourth Proportional to 2,091,680.23, 2,885,770.84 and 1,317,359.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091,680.23 : 2,885,770.84 = 1,317,359.21 : x
2. Step 2: Convert to fraction form
   2,091,680.23/2,885,770.84 = 1,317,359.21/x
3. Step 3: Cross multiply
   2,091,680.23x = 2,885,770.84 × 1,317,359.21
4. Step 4: Simplify right side
   2,091,680.23x = 3,801,596,780,976.89
5. Step 5: Solve for x
   x = 3,801,596,780,976.89/2,091,680.23
6. Step 6: Final answer
   x = 1,817,484.69