Finding the Fourth Proportional to 2,971,333.86, 4,457,639.89 and 921,953.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,971,333.86 : 4,457,639.89 = 921,953.31 : x
2. Step 2: Convert to fraction form
   2,971,333.86/4,457,639.89 = 921,953.31/x
3. Step 3: Cross multiply
   2,971,333.86x = 4,457,639.89 × 921,953.31
4. Step 4: Simplify right side
   2,971,333.86x = 4,109,735,873,421.17
5. Step 5: Solve for x
   x = 4,109,735,873,421.17/2,971,333.86
6. Step 6: Final answer
   x = 1,383,128.27