Finding the Fourth Proportional to 1,994,131.41, 2,990,569.72 and 645,981.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,994,131.41 : 2,990,569.72 = 645,981.24 : x
2. Step 2: Convert to fraction form
   1,994,131.41/2,990,569.72 = 645,981.24/x
3. Step 3: Cross multiply
   1,994,131.41x = 2,990,569.72 × 645,981.24
4. Step 4: Simplify right side
   1,994,131.41x = 1,931,851,923,426.84
5. Step 5: Solve for x
   x = 1,931,851,923,426.84/1,994,131.41
6. Step 6: Final answer
   x = 968,768.61