Finding the Fourth Proportional to 1,528,611.25, 2,111,641.91 and 1,224,705.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,528,611.25 : 2,111,641.91 = 1,224,705.73 : x
2. Step 2: Convert to fraction form
   1,528,611.25/2,111,641.91 = 1,224,705.73/x
3. Step 3: Cross multiply
   1,528,611.25x = 2,111,641.91 × 1,224,705.73
4. Step 4: Simplify right side
   1,528,611.25x = 2,586,139,946,885.14
5. Step 5: Solve for x
   x = 2,586,139,946,885.14/1,528,611.25
6. Step 6: Final answer
   x = 1,691,823.18