Finding the Fourth Proportional to 921,002, 1,381,580.76 and 256,154

Step by Step Solution

1. Step 1: Write the proportion equation
   921,002 : 1,381,580.76 = 256,154 : x
2. Step 2: Convert to fraction form
   921,002/1,381,580.76 = 256,154/x
3. Step 3: Cross multiply
   921,002x = 1,381,580.76 × 256,154
4. Step 4: Simplify right side
   921,002x = 353,897,437,997.04
5. Step 5: Solve for x
   x = 353,897,437,997.04/921,002
6. Step 6: Final answer
   x = 384,252.63