Finding the Fourth Proportional to 760,834.09, 1,049,982.69 and 421,302.34

Step by Step Solution

1. Step 1: Write the proportion equation
   760,834.09 : 1,049,982.69 = 421,302.34 : x
2. Step 2: Convert to fraction form
   760,834.09/1,049,982.69 = 421,302.34/x
3. Step 3: Cross multiply
   760,834.09x = 1,049,982.69 × 421,302.34
4. Step 4: Simplify right side
   760,834.09x = 442,360,164,256.50
5. Step 5: Solve for x
   x = 442,360,164,256.50/760,834.09
6. Step 6: Final answer
   x = 581,414.75