Finding the Fourth Proportional to 1,140,874.58, 1,574,425.56 and 624,619.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,140,874.58 : 1,574,425.56 = 624,619.82 : x
2. Step 2: Convert to fraction form
   1,140,874.58/1,574,425.56 = 624,619.82/x
3. Step 3: Cross multiply
   1,140,874.58x = 1,574,425.56 × 624,619.82
4. Step 4: Simplify right side
   1,140,874.58x = 983,417,409,890.60
5. Step 5: Solve for x
   x = 983,417,409,890.60/1,140,874.58
6. Step 6: Final answer
   x = 861,985.56