Finding the Fourth Proportional to 683,046, 942,613.20 and 381,240

Step by Step Solution

1. Step 1: Write the proportion equation
   683,046 : 942,613.20 = 381,240 : x
2. Step 2: Convert to fraction form
   683,046/942,613.20 = 381,240/x
3. Step 3: Cross multiply
   683,046x = 942,613.20 × 381,240
4. Step 4: Simplify right side
   683,046x = 359,361,856,368
5. Step 5: Solve for x
   x = 359,361,856,368/683,046
6. Step 6: Final answer
   x = 526,116.63