Finding the Fourth Proportional to 1,182,123.60, 1,772,862.34 and 423,824.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182,123.60 : 1,772,862.34 = 423,824.14 : x
2. Step 2: Convert to fraction form
   1,182,123.60/1,772,862.34 = 423,824.14/x
3. Step 3: Cross multiply
   1,182,123.60x = 1,772,862.34 × 423,824.14
4. Step 4: Simplify right side
   1,182,123.60x = 751,381,856,588.89
5. Step 5: Solve for x
   x = 751,381,856,588.89/1,182,123.60
6. Step 6: Final answer
   x = 635,620.38