Finding the Fourth Proportional to 3,445,981.18, 5,168,970.55 and 921,570.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,445,981.18 : 5,168,970.55 = 921,570.82 : x
2. Step 2: Convert to fraction form
   3,445,981.18/5,168,970.55 = 921,570.82/x
3. Step 3: Cross multiply
   3,445,981.18x = 5,168,970.55 × 921,570.82
4. Step 4: Simplify right side
   3,445,981.18x = 4,763,572,416,548.89
5. Step 5: Solve for x
   x = 4,763,572,416,548.89/3,445,981.18
6. Step 6: Final answer
   x = 1,382,355.90